Thermal Master P3 Manual Focus USB Thermal Camera Dongle - First Impressions - Page 1
Forum section: electronics / general

author: Fraser
author_rank: Super Contributor
timestamp: August 05, 2025, 06:17:36 pm
content: Thermal Master P3 USB Thermal Camera DongleFirst Impressions by FraserThermal Master has sent me a P3 USB Thermal Camera Dongle for testing.What makes this particular thermal camera dongle stand out in the crowd is the combination of a manual focus lens and the Thermal Master AI driven X3 resolution enhancement mode.First impressions of the camera dongle are excellent. It appears well designed, with a high quality metal case and lens assembly. The casing is not as small as that of the P2 and P2 Pro but it remains conveniently compact and sleek. The finish on the case is also of high quality in a mainly satin black coating with brass/gold accents for those who like a thermal camera with styleThe USB Type-C plug extending from the top surface appears well secured into the cameras case and shows no signs of weakness in the design. The plug is extended to permit easy mounting on a mobile phone that is wearing a protective cover.The P3 is supplied with some useful accessories:1. USB-C extension cable 48cm in length2. USB-C socket to Lightning plug adapter for older iOS devices3. USB-C socket to USB-A plug for connection to a PC or Tablet4. Rugged carry case for P3 and accessoriesThe box advertises the P3 as "All-OS", hence the inclusion of the adapters to facilitate connection to a wide range of devices. From what I have seen, the P3 is able to operate with iOS, Android and Windows platforms but I have not seen software support stated for Linux. I am uncertain whether Apple MAC is supported. The various Apps are available via the phones App store and the PC software, called "Temp Master" is available from the Download area of the Thermal Master Web site (Note comments later in this document regarding the PC software).The specifications of the P3 are a pleasure to read as they provide an insight into the P3's varied capabilities. The specifications are repeated below:Model: P3Infrared Core: Thermal Master High-Sensitivity SensorDetector: Vox 256x192 @12μmX³IR™ Resolution: 512x384 pixelsFrame Rate 25HzNETD: ＜35mk@25℃Focal Length: 4.3mmLens FOV: 40°x30.2°Focusing Mode: Manual Focus Lens with Macro down to 8mm distanceDigital Zoom: 15× (common sense applies here as resolution decreases with an increase in Digital Zoom)Measurement Range: -4℉~1122℉（-20℃~600℃）Temp Accuracy: ±2℃ or ±2% of the readingPower Consumption: 0.32WImage enhancement: RazorX™ Ultra-Clear algorithmAccuracy Enhancement: IQ+ Precision Temp(Dynamic compensation algorithm for temperature drift with intelligent sensing of ambient temperature)Isotherm mode: YesA setting that highlights a specific range of temperatures within the thermal image, making them stand out with a distinct color)Compatibility: iPhone®, iPad®, Android™ Phones and PCs(iPhone 8-16, Android 7.0 or higher system)Size (LxWxH) : 59*27*17.2 mmCase Material: Aerospace AlloyPlug: Plug extended by 2mm, compatible with most phone casesPackage Content: P3 thermal camera, portable case, Type-C to Lightning adapter, 50cm extension cable, user manualFrom the above specifications it can be seen that the P3 uses a 256x192 pixel 25fps thermal imaging core that has a stated NETD of <35mK. That is an impressive thermal sensitivity. I do recommend that buyers not get too fixated on NETD though. Whilst it can be a guide to thermal sensitivity when comparing different cameras or cores, it is not the "whole picture" when assessing camera performance. Thermal Master have created an image and measurement enhancement package for their cameras and these are present in the P3. We have the X3 resolution enhancement mode that is said to use AI in its operation. This creates a 512 x 384 pixel image from the physical 256x192 pixel microbolometer output. In my experience this X3 mode can work well in many thermal scenes. The RazorX algorithm is focussed on image enhancement whilst the IQ+ algorithm focuses on providing the best measurement accuracy possible fro a given thermal scene and target. This package of image processing and enhancement algorithms is welcomed as image processing is a key are in thermal imaging that needs to continue development to provide the best possible images from the relatively low resolution thermal imaging microbolometers.The P3 clearly has good microbolometer and image processing/enhancement credentials, but all that is wasted if the lens system that illuminates the microbolometer is of poor design or poor quality. Thankfully Thermal Master understand the need for good optics and have not held back on the production cost of the small, but perfectly formed, lens and manual focus assembly. The lens is recessed deep into the lens barrel affording it good impact protection, and the metal manual focus ring is beautifully designed to be large enough to be easily operated whilst not being cumbersome and projecting too far forward of the casing. When using the manual focus I found it to be very forgiving in terms of Depth of Field and the focus ring movement is beautifully smooth with just the right amount of rotation resistance, likely provided by a carefully selected high viscosity optical grease. The large focus ring is the perfect size for ease of use. I found that I am able to adjust the focus with one finger acting on the focus ring at the side of the cameras case. Very nice. I have no complaints about the choice of lens, its FOV or the feel of the manual focus function whilst in use. I am pleased that Thermal Master elected to use a 40 Degree HFOV lens rather than something nearer to 60 degrees as other cameras use. The 40 degree HFOV lens provides a better IFOV figure.There will always be those who like, or dislike, the idea of attaching a thermal camera to a mobile phone. I tend to fall into the "dislike" category of user as I have always used complete thermal cameras that are rugged and an "All-in-One" thermal imaging solution. That said, I have modified my view of thermal imaging USB dongles since using some for PCB analysis and testing for reviews. The FLIR One G2, G3 and Seek Thermal Classic Dongle Cameras left me feeling underwhelmed with the whole USB thermal camera dongle experience but the Infiray P2 Pro changed that view for me. A well designed USB thermal camera dongle with good thermal imaging capabilities can be a pleasure to use. Granted there is the need for a Host phone, tablet or PC, but these are not rare items in daily life these days. The versatility of the small USB thermal dongles is what I like. I can attach one to my everyday phone, a dedicated workshop phone or some other host. I can use an extension cable to make the thermal imaging Dongle even more versatile for PCB analysis or imaging in confined spaces. Do remember personal safety when delving in a car engine bay or a live equipment cabinet though ! For me I am now a convert to USB thermal imaging dongles in situations for which they are well suited. I still use my "All-in-One" type thermal imaging cameras as they have their strengths as well. I love the Thermal Master THOR series that I am currently testing, but that excellent camera has a size disadvantage when working in confined spaces or wanting to have a thermal imaging capability on your person when out and about, without the weight of a larger camera format. For those, like me, who dislike holding a mobile phone between their fingers whilst using it, I found several excellent "pistol grip" format mobile phone handlers. The Manfrotto travel format "Pistol grip" holder is an excellent compact solution.So we are going a bit deeper than I intended with this post but I am genuinely impressed with the products offered by Thermal Master and the P3 is no exception, so it is easy to get carried away !A first impressions post would not be complete without some sample "teaser" images captured by the camera so I am including a few here and there will be more in the full review, including comparisons between images captured with the X3 mode on and off to show what it does.The P3 was connected to my Motorola phone and the Temp-Master app that was previously installed for my Thermal Master P2 recognised the P3 and began working with it without incident. This App can attach GPS data to images so I will need to strip that data off of any images that I upload and this should be considered by users of these cameras and the related Apps. I am sure Thermal Master are not alone in Geo tagging images. The App also saves the images in a large format over which I have no control, so please forgive the image sizes in this thread ! (software size reduction could degrade the thermal images).I attempted to connect the P3 to my Windows 7 laptop and then to my Windows 10 laptop. Sadly I could not get the Temp-Master PC software to install in the English language or do anything more than display the thermal image stream. I shall have to investigate the PC software situation further and maybe discuss with Thermal Master after making sure that I am not doing something stupid !The sample images provided here include the usual, (obligatory) cat images, some house images and images of my Philips DVB set top box PCB as used for other reviews that I have written. More interesting targets will be included in the full review. I carried out a quick P3 measurement accuracy test against a known accurate Black Body and the result was impressive after allowing the camera to warm up. For a 40 degree Celsius Black Body reference, I measured the emission plate as 39.9 and 40.0 Degrees Celsius with the P3. Not bad at allThe camera must be allowed to temperature stabilise though and this is true of all thermal cameras when the highest measurement accuracy is required.So in summary, do I like the Thermal Master P3 manual focus thermal imaging USB Dongle ?That is simple to answer as I very much like what I see in the P3. Its imaging performance, within the obvious constraints of a 256x192 physical pixel microbolometer camera, is excellent. The X3 super resolution mode certainly appears to be a very useful resolution enhancement tool as well.The full review of the P3 will follow once I have had some time using the unit in various situations and collecting imagery to share with this forum. If considering the purchase of a USB thermal imaging dongle then the P3 is most certainly worthy of serious consideration. If manual focus is not desired, the P2 and its tiny brother, the P2 Pro, are excellent alternatives. There are reviews of both by me on this forum. For a manual focus USB dongle type thermal imaging solution the P3 offers a lot and is very versatile.

author: Fraser
author_rank: Super Contributor
timestamp: August 05, 2025, 06:22:33 pm
content: Thermal images begin hereX3 Super resolution mode is on in these images

author: Fraser
author_rank: Super Contributor
timestamp: August 05, 2025, 06:25:45 pm
content: Thermal Images continued.X3 Super Resolution mode is on in these imagesThese images are of the Philips DVB set top box PCB and show some of the available Palettes.

author: Fraser
author_rank: Super Contributor
timestamp: August 05, 2025, 06:28:54 pm
content: Now for the close-up images and very close-up imagesX3 Super Resolution mode is on in these images

author: Fraser
author_rank: Super Contributor
timestamp: August 05, 2025, 06:35:50 pm
content: A quick comparison between images produced at the native 256x192 pixel resolution and those created by the AI driven X3 Super Resolution mode. The first image of each pair is in standard resolution and the second is with X3 switched on. I have found that cats fur presents teh X3 AI algorithm with a significant challenge ! Cats make great test targets.... when they hang around long enough to image !The X3 Super Resolution AI Algorithm copes much better with scenes that contain straight lines and more predictable content structure.

author: Fraser
author_rank: Super Contributor
timestamp: August 05, 2025, 06:40:24 pm
content: Comparison continues. First image of pair is with X3 off nad second is with it on.

author: Fraser
author_rank: Super Contributor
timestamp: August 05, 2025, 06:45:36 pm
content: The P3 Measurement accuracy test.This test used a known accurate Black Body thermal reference that had been set to +40 Celsius and left to stabilise for 1 hour before the test began.The P3 camera was attached to the Motorola phone and the App switched on. The P3 camera was allowed to temperature stabilise for 15 minutes before the measurement was taken.The distance between the Black Body emission plate and the P3 camera lens was 0.5m and the Black Body has an Emissivity of 0.97. This data was entered into the Temp-Master App prior to the test.The test result was a measurement that alternated between 39.9 and 40.0 Degrees Celsius. An excellent measurement accuracy in this test.

author: 2N3055
author_rank: Super Contributor
timestamp: August 05, 2025, 07:07:46 pm
content: First I would like to thank you for sharing all the wealth of knowledge on thermal cameras with us.I have a relevant question.I see on Thermal Master web site that there is a PC (Windows) application that is supposed to work with Android version of P2/P2 Pro/and P3.Did you try it, and if you did, how well it works?I would like to have the camera pretty much at my desk (maybe occasionally with a phone if needed), where I already have a PC and large screen for other instruments... If it does work well with PC, then I think of getting one.Thank you and my best,Sinisa

author: Fraser
author_rank: Super Contributor
timestamp: August 05, 2025, 07:14:09 pm
content: Hi,Yes I tested the PC software that is available on the Thermal Master Download page. Sadly I am having trouble with it as it installs in Chinese language, no matter what I select during installation.I can see a streamed image from the P3 camera but can find no other functionality in the program. Something appears to be wrong and I have tried multiple Windows 7 and Windows 10 laptops today.I have literally just sent an email to my contact at Thermal Master highlighting the issue and asking for it to be investigated. I will advise here when I know more.Fraser

author: Fraser
author_rank: Super Contributor
timestamp: August 05, 2025, 07:21:53 pm
content: Whilst packing up the P3 cables I remembered something I omitted from my comments. I am not sure about the fit of the USB-C to USB-A adapter as it does not snap into place like my other USB-C adapters and the engagement of the USB-C plug into the adapter seems too shallow. I had multiple intermittent USB disconnects when using the adapter. I used another adapter with the provided USB extension cable and it worked well. I will raise this issue with Thermal Master. Thankfully USB-C to USB-A adapters are very inexpensive so, whilst unfortunate, I do not consider this a big issue. The supplied little adapter looks very nicely made which makes this even more of a pity.Fraser

author: jwehle
author_rank: Newbie
timestamp: August 08, 2025, 05:57:08 am
content: I'm considering the P3 or the Thor 001 for primarily PCB diagnostics. The Thor user guide mentions supporting mounting on a tripod.The Thermal Master website for the P3 has a picture of a camera mounted on a stand looking at a PCB. Looking at your posted pictures of the camera it's not clear to me how it mounts.Were you manually holding it when taking the pictures of the Philips DVB set top box or were you using some type of stand?

author: Fraser
author_rank: Super Contributor
timestamp: August 08, 2025, 12:01:25 pm
content: Hi,I had the P3 attached to my phone and the phone held in a common mobile phone tripod mount that was attached to a mini tripod. The Philips DVB box was standing vertical in front of the camera. Using a mobile phone holder it would be possible to attach the phone and P3 to an articulating arm or other mount. As far as I am aware, thermal master do it offer a desk mount option for the P3. I used a 3D printed camera holder for my P2 Pro when attaching it to various stands. See my review of the P2 Pro for lots of options for mounting a finger camera on a support, remote from the mobile phone.https://www.eevblog.com/forum/thermal-imaging/review-infiray-p2-pro-thermal-camera-dongle-for-android-mobile-phones/A normal mobile phone holder/clamp could be easily adapter to hold the P3 as it is almost as wide as a common smart phone.Fraser

author: sslupsky
author_rank: Contributor
timestamp: August 12, 2025, 03:51:49 am
content: Does the P3 have to connect to a phone or can you plug it into a PC or mac with a USB C cable and control it from there?

author: kite31
author_rank: Regular Contributor
timestamp: August 12, 2025, 04:06:07 am
content: Quote from: sslupsky on August 12, 2025, 03:51:49 amTemp Master is available for iOS. It might work on Apple silicon for portables or desktops. That would be your risk. Windows PCs I have no idea.

author: Fraser
author_rank: Super Contributor
timestamp: August 12, 2025, 05:49:08 am
content: Thermal Master provided a Temp Master for PC software on their download page but I could not get it to work. After raising this issue with them they have just sent me a new version of the PC software that I will test with the P3 later today. The P series software for PC supports the P2, P2 Pro and P3 cameras.Fraser

author: MrFaul
author_rank: Newbie
timestamp: August 12, 2025, 11:37:39 am
content: Thanks for the review 👍A couple of questions:Any chance the thing runs on Linux?And have you checked the app for privacy invasions?Suggestion: add some photos of distribution panels. Might be interesting for some people.

author: Fraser
author_rank: Super Contributor
timestamp: August 12, 2025, 03:23:07 pm
content: 1. As far as I am aware thermal Master do not include Linux in their P3 supported operating systems.You could ask them about an SDK as that may include Linux related drivers and libraries.2. I have no interest in investigating software vulnerabilities or “privacy invasions” as I consider all software coming out of China carries that risk. I use such software on systems that have zero sensitivities. GPS Geo tagging is a known issue and I remove all metadata before posting images on the internet. Every user of such software will have their own risk appetite.3. Sadly I do not have access to suitable distribution panels for such testing.Fraser

author: CANUK
author_rank: Contributor
timestamp: August 14, 2025, 06:02:36 pm
content: Quote from: Fraser on August 05, 2025, 07:21:53 pmSame experience here with the adapter. It's disconnecting the camera with the slightest lateral movement of the cable. The molding they used added to much plastic after the metal edge of the usb receptable. I will try to file it a little to see if that helps.

author: Fraser
author_rank: Super Contributor
timestamp: August 14, 2025, 10:44:05 pm
content: CANUK,Have you managed to install and use the Thermal Master P3 PC software ? My attempts keep ending with a working program but in the Chinese language.Fraser

author: Fraser
author_rank: Super Contributor
timestamp: August 15, 2025, 01:17:31 am
content: I have fixed the issue of the P3 PC software displaying in Chinese. I edited the setup file and changed the language entry from 0 to 1 and the English language is now displayed in the program.Sadly I am still trying to work out why I have a display misalignment issue with associated soft button selection offset. I have to press a button by positioning the mouse arrow about 5mm above it. All the bottom buttons have shifted off of the bottom of the display window as well. Thermal Master are also looking into this for me. It looks like a classic Windows scaling issue but I am working at 100%. Setting 125% actually reveals more of the bottom buttons ! I get these symptoms on multiple PC’s that are running Win10 so would love to hear from anyone who has the software working without the Chinese language being set during installation and/or the display is correctly aligned and all soft buttons visible.TIAFraser

author: Fraser
author_rank: Super Contributor
timestamp: August 16, 2025, 01:20:56 pm
content: Thermal Master are working with me to identify the cause of problems I am having with their P series PC software. My installations end up in the Chinese language with a vertical display offset within the window (downwards) that causes misalignment of the soft button touch areas and loss of the soft buttons at the bottom of the display. The software runs and displays the P3 Thermal image fine. The Chinese language issue is easily resolved by editing the setup file and changing language from ‘0’ to ‘1’. The file is found in the Program Data (hidden file in C:\) area of your PC under Thermal Master. If anyone else wants to try an installation of the software (it does not require a P3 to be present) it is to be found here under the name P Series software for PC. This software also works with ten P2.cameras.https://thermalmaster.com/pages/download-center

author: CANUK
author_rank: Contributor
timestamp: August 16, 2025, 03:52:57 pm
content: @FraserYes same issues here. I fixed the default language by hardcoding /translation/SharpInfraredAnalyzer_en_US.qm in the EXE itself (didn't think of looking into the hidden files)I reported the offset issue yesterday as well.

author: Fraser
author_rank: Super Contributor
timestamp: August 16, 2025, 04:16:43 pm
content: CANUK,Thanks for this. It proves to Thermal Master that the problem is not my PC’s ( though I have tried several) and is an issue with the P3 software. Thank you for helping. Hopefully Thermal Master will fix this issue quickly for us.Fraser

author: Fraser
author_rank: Super Contributor
timestamp: August 16, 2025, 04:39:56 pm
content: CANUK“Sharp Infrared Analyzer” is ringing a bell in my memory ! I believe that is a 3rd party software.I will investigateFraser

author: Fraser
author_rank: Super Contributor
timestamp: August 16, 2025, 04:51:20 pm
content: As I thought, Sharp Infrared Analyzer has been mentioned for use with the P2 in the discussion attached.https://www.eevblog.com/forum/thermal-imaging/infiray-and-their-p2-pro-discussion/275/Fraser

author: Fraser
author_rank: Super Contributor
timestamp: August 16, 2025, 05:11:16 pm
content: More useful intel on SharpThermal Analyzer……From eBay buyer feedback on the Topdon camera“The PC software is written by the IR sensor manufacturer InfiSense Technology Co. You should download the latest PC software (Sharp Infrared Analyzer) and user manual from their web site because the Topdon links you to an old, buggy version that will crash”

author: Fraser
author_rank: Super Contributor
timestamp: August 16, 2025, 06:40:05 pm
content: The Xinfrared P2 Pro version of Sharp Infrared Analyzer installs in the Chinese language and runs, but it does not recognise the P3. There is no display offset in the window. This is an earlier version of the software though.The folder in which the Xinfrared software installs is called “Thermal Master”

author: CANUK
author_rank: Contributor
timestamp: August 17, 2025, 09:51:01 pm
content: I hope they take care of it.By the way, under Image Setting, the 3D feature crashes the app.

author: Fraser
author_rank: Super Contributor
timestamp: August 17, 2025, 10:47:12 pm
content: Ooops.I have software 1.22 which is the latest but still has the offset. I will check the 3D mode.Fraser

author: KMSL
author_rank: Newbie
timestamp: August 19, 2025, 11:20:53 am
content: Compares the P2 Pro and P3. Says the PC software is of lower quality than the smartphone software and that the X3 mode doesn't work.

author: CANUK
author_rank: Contributor
timestamp: August 19, 2025, 11:20:06 pm
content: Quote from: CANUK on August 17, 2025, 09:51:01 pmI got a message from Thermal Master to use the android app for now. They are fixing the offset issue. ETA 1-2weeks.

author: Fraser
author_rank: Super Contributor
timestamp: August 20, 2025, 02:30:09 pm
content: Thermal Master had a meeting with their IT team and the current theory is that it is the 1366x768 display resolution that I have on my laptops that is causing the issue. I have tried a 1080p HD resolution on an external monitor and it did not solve the problem though. Thermal Master are taking the matter seriously despite noting that a screen resolution of 1366x768 pixels is somewhat uncommon these days.I currently use a lot of business laptops that used to come as standard with 1366x768 pixel display panels with higher resolution available as an upgrade option. Many business users were content with 1366x768 so my second hand laptops are that spec. Modern laptops often have HD quality displays and higher resolution so I can understand modern software developers thinking that is what they design their software for and maybe forget to test it on lower resolution platforms that are still more than capable of running the software in all other respects. This is something I need to consider when using modern software with my circa 2015 to 2020 hardware. I recall having to advise FLIR that their FLIR Tools software did not display correctly on the 1024x600 resolution Netbooks that were the rage at the time. Their developers forgot about that resolution when developing the software. FLIR gifted me a Tools+ licence for highlighting the issue to themFraser

author: Fraser
author_rank: Super Contributor
timestamp: August 20, 2025, 03:02:45 pm
content: This discussion of PC software raises questions about USB thermal dongles and their use on mobile devices or PC’s.The USB Dongle format is most often presented as an accessory for a mobile phone, or maybe a Tablet, that is running Android or iOS. Some manufacturers offer PC support or a Windows/Linux SDK for those users who wish to connect to a PC. Such PC software can vary greatly in what it offers the user. Some PC software is barely more than a simple image stream viewer and offers little in terms of functionality. Other PC software is far more capable because the manufacturer recognises a part of the market that uses USB Dongle type thermal cameras in a fixed mount for research or repair purposes. There is software that falls into the middle ground and is the most commonly found. Remember, the app software user is likely not the primary intended market for many manufacturers as mobile phone use dominates in this market segment. Some manufacturers produce USB thermal camera dongles that are marketed for use in R&D or electronic repair scenarios. Those cameras often come with a bench mount and may have a Macro lens attachment or manual focus capability. It is those cameras that tend to come with more capable PC software that can perform useful measurements on an electronics PCB etc. The P3 does not come with a bench mount but it is very suited to R&D or electronic repair situations thanks to its decent imaging capabilities and its manual focus lens. Users can construct or adapt all manner of custom mounting solutions to best suit their needs but the PC software is a real bonus as it enables use with a nice large screen laptop etc. that said, a large screen Android tablet could also be used. I hope that Thermal Master can patch their PC software to work with 1366x768 pixel laptops as these are plentiful and inexpensive on the used market for dedicated lab use.Lest we forget, in the “bad old days” thermal camera manufacturers used to fleece end users with the very high (extortionate) cost of PC thermal image analysis software. I am pleased that some manufacturers now provide such software at no additional cost to the userFraser

author: Fraser
author_rank: Super Contributor
timestamp: August 20, 2025, 03:50:06 pm
content: When first researching the P3 I did note an image on their P3 web page that could be considered a little misleading. It shows a thermal camera connected to a PC whilst viewing a PCB using a bench stand. That is a “stock image” likely showing the stand that is available first the T2 series of USB dongle cameras. The P3 is shown as being connected on the laptop display. The P3 does not fit in that bench stand. Maybe a bench stand compatible with the P3 is planned ?https://thermalmaster.com/products/thermal-master-p3-pcb-master?srsltid=AfmBOoo-t0ZugK9DNyUTTSpR4vTDBQDWGh_BA3SNWd88CKKu5DPjgjmMSometimes the marketing team get things wrong and I can see that the intention was to show a potential use case, rather than the actual P3 in use analysing a PCB.

author: CANUK
author_rank: Contributor
timestamp: August 20, 2025, 05:49:13 pm
content: Well...marketing did well because I bought the P3 for that reason (it was not sent to me for free). The adjustable scale is also a great feature. Cheaper models don't have that. I get that we can use a tablet, but I hate the idea of having a dedicated tablet just for the thermal camera when I already have a computer. By the way, I use a 1920x1080 pixels monitor and the UI offset issue is there. Not sure why they think it's an issue specific to lower resolutions screens.

author: Fraser
author_rank: Super Contributor
timestamp: August 20, 2025, 06:11:40 pm
content: CANUK,Thank you for confirming the resolution that you are working atThe P3 is a very nice thermal camera so I am confident that you will find it very useful once the bugs are pulled out of the PC software. I am able to select the various function buttons by placing my mouse above where the buttons are so I can test the features of the 1.22 software version. I am interested to see the reviewer in the referenced review video did not seem to have the offset issue with their installation. I have a gaming PC available to me so I will try installing the software on that to see what happens.Fraser

author: Fraser
author_rank: Super Contributor
timestamp: August 20, 2025, 06:21:44 pm
content: CANUK,If you are considering methods for mounting the P3 for PCB inspection, I have seen one method that is basically a USB-C extension cable with the female end attached to a bench stand horizontal arm with heat shrink tubing. I am not a fan of using this approach though. I have looked at the cheap and simple mobile phone tripod adapters and they can grip a phone that is 5.5cm to 7.5cm in width. The P3 is 5.9cm in width so would be gripped by the tripod adapter. The adapter may then be attached to an articulated arm or other mounting system.The phone clamp may also be used with a pistol grip handle to hold the mobile phone more easily when mounting the P3 directly on the mobile phone.Fraser

author: Fraser
author_rank: Super Contributor
timestamp: August 20, 2025, 06:46:06 pm
content: Another phone clamp design that can grip phones as narrow as 5.6cm

author: Fraser
author_rank: Super Contributor
timestamp: August 20, 2025, 06:52:42 pm
content: Looking at the position of the manual focus ring on the P3, any phone clamp might need minor modification to avoid the clamp acting upon the focus ring.Fraser

author: CANUK
author_rank: Contributor
timestamp: August 20, 2025, 07:37:29 pm
content: Not sure about the adapter yet. Will figure that out later later. The phone adapter is not a bad idea, but as you said will require modification to not interfere with the focus ring. Might just go with this adapter (https://www.aliexpress.com/item/1005009392330701.html) and use two rubber bands or use the provided double sided tape.Can you check in the PC app under Image Setting, if the 3D mode crashes the app?

author: phenol
author_rank: Regular Contributor
timestamp: August 26, 2025, 12:59:37 pm
content: Which android software are you using p3 with? I tried the one on google store but the X3 mode seems to do virtually nothing. the version there is 1.10.4I removed it and installed one of the apks from the website of thermal master. it reports 1.10.0 and while X3 does work, the update rate becomes choppy and the contrast settings dont work either. i attribute the former to the phone itself, though.IOS version works fine as far as i could tell.

author: dc443
author_rank: Newbie
timestamp: August 31, 2025, 06:16:08 am
content: Please, I have scoured the internet and you are in a unique position to comment qualitatively on the relative sensitivity and FOV between THOR001 and P3.I think since the P3 is much cheaper but shares the resolution and mK rating it may be the superior choice because of the manual focusable lens. However I'd like to know what the field of view is.I am almost certain I will get the P3.I believe these cameras deliver data over a standard USB UVC protocol. Apparently we have to do some manipulations to get what we need, and I don't know if there are controls that need to be reverse engineered, but it seems at least somewhat promising for when the OEM stops maintaining their software and we're left to our own devices. That is the drawback of the non-standalone thermal cameras.However I do think that the larger display of the phone and the more compact form factor overall is enough to justify it.Edit: I found 40x30 deg FOV listed for both products in your reviews Fraser. Appreciate it.

author: Fraser
author_rank: Super Contributor
timestamp: August 31, 2025, 10:06:47 pm
content: dc443,The choice between camera formats is very much a personal one as some people prefer the “all-in-one” solution whilst others want the portability of a USB dongle that may be attached to their phone. For that reason I will not comment on which is the better format.Talking purely about imaging and capabilities, the THOR series and P3 are quite evenly matched except when it comes to the lens. As you have noted, the THOR is fixed focus and this is a compromise solution that provides ease of use with acceptable image sharpness over an excellent depth of field. The P3 lens may be manually focussed and this is a mixed blessing. Manual focus provides the best possible image sharpness from the camera system, but at the cost of convenience. Some users find the need to manually focus on targets at different distances irritating when compared to the simplicity of a fixed focus system that still provides acceptable scene sharpness in many cases. The manual focus lens comes into its own when working on close targets, such as electronics. The manual focus on the P3 permits imaging of targets at very close range without the need of additional optics. The focus point is variable, unlike when using a simple close-up lens on a fixed focus camera system (the focus distance is mainly dictated by the choice of close-up lens FL). For me, the manual focus combined with the versatility of a USB dongle camera format makes it a winner for bench top PCB thermal analysis. That said, most camera formats may be used for PCB observation during an electronics diagnostic and repair process. The dongle format just permits the camera head to be positioned remotely from the host phone or PC on an extension cable and this works well for PCB thermal analysis tasks with the camera on a stand.In terms of image quality, the THOR and P3 are pretty evenly matched within the limits imposed by the different lens systems.The P3 can achieve the sharpest possible images so wins the contest on that front. The resolution of both cameras is the same and they both offer the AI driven X3 resolution enhancement and Razor image enhancement systems.With regard to temperature measurement accuracy, I will not comment at this time as I have ongoing investigations into the measurement accuracy of the THOR vs the P3. I can say that the P3 measured a 40.0 Celsius “BlackBody” reference as 40.2 Celsius….. very goodThe Elephant in the room with the THOR-001 is its price. The THOR-002 is significantly cheaper and, in my opinion, more than capable of meeting the needs of hobbyists and even semi-pro users. Sadly the THOR-002 does not have manual level and span available as that has been reserved for the THOR-001 model. The close-up lens provided with the THOR-001 is excellent optical quality and is not just a cheap ZnSe laser focus lens. I suspect it was quite an expensive optical element, hence the higher cost of the THOR-001. Casual users and hobbyists can make their own close-up lens for any thermal camera by using the inexpensive $30 ZnSe laser focus lenses discussed many times on this forum. They will not be as good as the THOR-001 lens, but sometimes “good enough” will get the job done. Professional users are better positioned to afford the THOR-001 as it will pay for itself over time. They get the benefit of a professionally designed close-up lens attachment and the calibration correction needed to account for the additional lens elements transmission loss.I like both the THOR and P3 cameras as they serve my needs in different ways. Would I want just a USB camera dongle ? For me, the answer is no as I prefer the Pistol grip all-in-one camera format that does not rely on compatible host hardware and app updates as OS changes occur. For me, the USB dongle cameras are a very nice addition to my thermal imaging capabilities that offer more versatility than the all-in-one camera format. For this reason I would always want access to both formats.With regard to NETD and whether 35mK NETD is good. Yes 35mK is an excellent NETD if it is reflected in real world imaging performance and not just a number on a specification or sales sheet. In my experience both the THOR and P3 cameras have excellent sensitivity that is more than enough for most users. Whilst the THOR-002 is stated as having a 40mK NETD, I do not believe that you will notice the difference. 35mK vs 60mK maybe, 35mK vs 40mK…. Nope.Fraser

author: KALLE_BMW
author_rank: Newbie
timestamp: September 01, 2025, 08:14:36 am
content: I bought the P3 from Alige. I used a mount to view the circuit boards (I also had a small microscope tripod).Attached is the first draft and some sample images.

author: Fraser
author_rank: Super Contributor
timestamp: September 01, 2025, 08:31:42 am
content: Excellent workWill you be sharing your P3 holder design please?Fraser

author: KALLE_BMW
author_rank: Newbie
timestamp: September 02, 2025, 01:49:58 pm
content: Here's a revised version of the holder. Holder No. 1 was too short for larger boards.I split the 3D print into two parts so I could print without support. Note: I designed them with relatively tight tolerances for my 3D printer with a 0.6mm nozzle.For convenience, I've also included the STL and STEP files in the ZIP file.

author: KALLE_BMW
author_rank: Newbie
timestamp: September 02, 2025, 01:51:54 pm
content: Here the ZIP File.The two parts were connected with M3 press nuts and M3x10mm screws

author: KALLE_BMW
author_rank: Newbie
timestamp: September 02, 2025, 01:56:10 pm
content: included in ZIP File

author: Fraser
author_rank: Super Contributor
timestamp: September 02, 2025, 02:00:56 pm
content: KALLE_BMW.Thank you for sharing your design. I can see that you have included both holder versions in your Zip fileThe two part design of the longer holder is great as it may be easily adapted to users needs by creating a different ‘arm’.Great WorkFraser

author: Fraser
author_rank: Super Contributor
timestamp: September 02, 2025, 03:28:28 pm
content: I have the adapter printing on my UPBOX right now and all is looking good.The only modification that I will make is to create a simple block with 1/4” 20TPI threads in its sides and top surfaces that replaces the arm assembly. This would make the holder more versatile as it would be compatible with various tripod mounts and articulated arms. Something like the adapter that was created for the P2comes to mind. Sadly that modification will have to wait until I get a spare moment though.Great work though KALLE_BMWFraser

author: Fraser
author_rank: Super Contributor
timestamp: September 02, 2025, 03:36:16 pm
content: Some examples of what can be achieved in terms of mounting options when a tripod thread is included in an adapter, as seen for the Infiray P2 series.The P2 Pro review thread contains more detail.https://www.eevblog.com/forum/thermal-imaging/review-infiray-p2-pro-thermal-camera-dongle-for-android-mobile-phones/

author: Fraser
author_rank: Super Contributor
timestamp: September 02, 2025, 03:37:02 pm
content: Continued…

author: Fraser
author_rank: Super Contributor
timestamp: September 02, 2025, 03:54:48 pm
content: For anyone wishing to use the P2 Pro tripod block as the basis of a P3 tripod mount, here is the link to the Thingiverse page where the files reside. The designer, Bostwickenator, is a member of this forum.https://www.thingiverse.com/thing:5144744The file set includes the tripod adapter block which might be convertible to fit on the P3 holder by KALLE_BMW in place of the arm assembly or as a modification to the P3 arm assembly ?Fraser

author: Fraser
author_rank: Super Contributor
timestamp: September 02, 2025, 05:27:33 pm
content: The first test print has competed and the P3 holder fits my P3 perfectly without any adjustments needed. I print in ABS so can sand the finished print to a fine finish. The printed holder was just a quick "test for fit" and is not properly cleaned up. Printing in ABS also means that I can easily glue parts together. I have in mind modifying the P2 tripod block and gluing it to the rear of the other P3 holder version that is normally attached to the extension arm. That mount version is currently printing. The result will be a bit of a Frankenstein's monster creation but it should serve my immediate needs while I review the P3 for PCB work.Fraser

author: Fraser
author_rank: Super Contributor
timestamp: September 02, 2025, 06:18:15 pm
content: The print of the second holder design has just come off the printer. This print required no support and has come out very cleanly as a result. The fit around the P3 is perfect. Not too loose and not too tight. My thanks to the P3 holders creator, KALLE_BMW, for this very neat design. I am now printing one of the P2 tripod blocks to create my "Frankenstein's monster" version of the holder for tripod attachment. If KALLE_BMW reads this, apologies for creating such a monster using your neat design ! If you decide to create your own tripod mounting version, you would make a lot of people happyFraser

author: Fraser
author_rank: Super Contributor
timestamp: September 02, 2025, 07:13:25 pm
content: A mongrel is born ! The prints are completed, the modifications to the P2 tripod block done and surfaces sanded flat for glueingThe small P2 tripod may be attached to the P3 holder in various orientations to suit the users requirements. I would be the first to say it is an ugly solution but it was quick and could be done whilst I complete other tasks of higher priority. The result is practical rather than prettyIt would be far better to have a dimensionally matching block on the rear of the P3 holder or even a reworked P3 holder providing the 1/4" 20Tpi tripod threads, but that is beyond me at the moment. Whilst I was working in Darwin, Australia, we would have called this "bush engineering" .... ugly but get the job doneFraser

author: Fraser
author_rank: Super Contributor
timestamp: September 02, 2025, 07:32:54 pm
content: Some other possible mounting positions for the tripod block. A user could have different holders configured for different mounting solutions.The user has only to decide where to mount the tripod block on the P3 holder and then glue it in place with ABS compatible glue or solvent.Once the holder has been designed, the options for mounting the P3 camera are virtually limitless.Fraser

author: Eurora
author_rank: Contributor
timestamp: September 03, 2025, 03:01:27 am
content: Great first impressions write-up! I’ve been using the P3 for a while and agree that the build quality is a big step up from the P2 series — especially the extended Type-C plug, which makes it much easier to use with a phone case on. One thing I really appreciate is the manual focus; for electronics inspection you can dial it right in and get very sharp board detail, which is something many fixed-focus dongles struggle with.On the software side, I’ve had good results with the “Temp Master” app on both Android and Windows. The X3 resolution enhancement is subtle but does make traces and component edges cleaner when you zoom in. For anyone curious, the P3 will happily run continuously for long sessions without overheating, but I’d recommend using the included extension cable if your phone gets warm — it keeps the heat away from the sensor and gives more freedom to move.

author: JOSDHO
author_rank: Contributor
timestamp: September 03, 2025, 07:34:47 am
content: Thanks for sharing such a detailed first impression — it’s great to see the full specs listed out. I’ve been using the P3 for some PCB rework and small-scale thermal troubleshooting, and the manual focus really is the killer feature here. Being able to dial in focus from macro to a few meters away makes a big difference when you’re looking at tiny SMD components — you can actually resolve which chip is heating instead of seeing just a blurry warm area.The 25 Hz refresh rate is also very usable for scanning across a board in real time; I haven’t seen any noticeable lag. And the <35 mK NETD spec feels accurate in practice — you can spot just a few degrees difference between traces. For anyone doing electronics work, I’d recommend using the included USB-C extension cable so you don’t put mechanical stress on your phone port while moving around.

author: KALLE_BMW
author_rank: Newbie
timestamp: September 03, 2025, 07:50:46 am
content: Please try this new design.with 1/4" 20TPI thread

author: Fraser
author_rank: Super Contributor
timestamp: September 03, 2025, 09:26:01 am
content: KALLE_BMW,Thank you so much for your new design. That looks perfectThank you also for taking the time to create this tripod mount version. I find it hard to create accurate screw threads with the design software I use so it would have taken me ages to do or I would have had to use metal inserts. Your efforts are very much appreciated and I shall get my printer creating it todayThanks againFraser

author: slavoy
author_rank: Regular Contributor
timestamp: September 03, 2025, 10:20:05 am
content: Quote from: Fraser on August 15, 2025, 01:17:31 amSame here, tested on 3 different PC's, different resolutions. Actually on my home PC due to too many tested thermal cameras and software, the Thermal Master app won't even open.The camera itself is very nice, works with Android smartphone flawlessly.

author: Fraser
author_rank: Super Contributor
timestamp: September 03, 2025, 11:29:52 am
content: Skavoy,I treated myself to ‘new’ laptop as I have been using an HP Elitebook 2170P from 2013 with a 1366x768 pixel display as my main laptop. I bought a used 2023 HP Elitebook 830 G9 that has a higher resolution 1920x1200 pixel display. The Thermal Master P3 installed without issues on this Windows 11 platform and ran perfectly without the display offset and all buttons were visible. I set the 830 G9 to 1366x768 resolution and it still worked fine with the P3 software. I am thinking that the P3 PC software was developed with tools that expect a modern laptop to be used and maybe we are seeing a display driver incompatibility ? Thermal Master have tasked the Software development team with solving the issue for users of older laptops.Fraser

author: Fraser
author_rank: Super Contributor
timestamp: September 03, 2025, 02:36:06 pm
content: The KALLE_BMW custom tripod mount for the P3 has printed perfectlyThe 3D printed 1/4" 20 TPI threads are an exact match for my tripod screws and I only had to use a rose bit on them to clean up the entry a little. No tap was needed to clean the threads. This can be a real challenge to achieve on the first attempt but KALLE_BMW did itThe KALLE_BMW tripod adapter has transformed my use of the P3 as it may now be held securely on a stand, articulated arm or tripod. I have taken some pictures of the tripod mount on a SmallRig mini tripod and, as can be seen, the versatility of the tripod means I can position the P3 above a target with ease. Anyone considering using the P3 for PCB thermal analysis needs the KALLE_BMW P3 tripod mount in their tool boxI have printed my holders/mounts in ABS on a Tiertime UP! BOX printer that calculates shrinkage of the material as it cools and compensates for such. This explains why the holders and tripod mount screws threads are the correct size. ABS shrinks a lot as it cools ! Other 3D printers may, or may not, be as accurate so YMMV. All I can say is that KALLE_BMW got the dimensions exactly right for my prints in ABS.My sincerest thanks to KALLE_BMW for their time spent on designing these holders and the custom tripod mount. This mount has opened up a vast range of P3 mounting possibilities as I showed with the P2 Pro.Fraser

author: Fraser
author_rank: Super Contributor
timestamp: September 03, 2025, 02:37:28 pm
content: Pictures continued....

author: KALLE_BMW
author_rank: Newbie
timestamp: September 05, 2025, 07:11:12 am
content: Attached are a few pictures (unfortunately not completely in focus) from the camera. I noticed that the maximum value on the temperature scale shows almost 1 °C less than the value at the maximum point. This appears to be a bug in the app.

author: CANUK
author_rank: Contributor
timestamp: September 06, 2025, 10:54:36 pm
content: Quote from: Fraser on September 03, 2025, 11:29:52 amTemp Master-Setup_1.2.2.0 still not working. Don't tell me 1080p resolution is outdated.@KALLE_BMW same here. Scale is off by 1 or 2 degrees on the max value.

author: Fraser
author_rank: Super Contributor
timestamp: September 07, 2025, 12:25:20 am
content: Nothing more heard on the display offset issue. I just hope they can fix it.Fraser

author: jwehle
author_rank: Newbie
timestamp: September 08, 2025, 02:22:57 am
content: Amazon is listing P3 for $ 299 and P3 Ver1 for $349 ... I'm not entirely clear on the difference.Clicking between the two seems to provide a lot of the same verbiage, just in a different order.Is the P3 essentially P3 Ver0 and some thing have been tweaked / enhanced for the more expensive unit?

author: Fraser
author_rank: Super Contributor
timestamp: September 08, 2025, 10:42:00 am
content: There is only one Thermal Master P3 modelFraser

author: phenol
author_rank: Regular Contributor
timestamp: September 08, 2025, 01:52:00 pm
content: I tested the pc software on two different laptops, one running win11 and the other 10 respectively. Both 1920x1080. It works fine on the win11 one with cropped buttons and cursor offset in win10.I couldn't see an option to enable/ disable the advertised X³ mode, though. It looks like it's permanently disabled

author: Fraser
author_rank: Super Contributor
timestamp: September 08, 2025, 02:58:04 pm
content: There is definitely something wrong with the way the PC software configures its window on many PC’s. The developers could not replicate the issue because they use modern, high resolution display computers. They are apparently working on the issue and your report of issues on a Windows 10 1920x1080 display laptop is very useful. I thought the issue was me using Windows 7 and Windows 10 laptops with 1366x768 pixel displays. Clearly this is not the case. I can only assume that the software development kit used first the P3 PC software has a bug in it.I believe the x3 mode is called “super resolution” in the PC software menu.Fraser

author: phenol
author_rank: Regular Contributor
timestamp: September 08, 2025, 03:49:27 pm
content: i couldn't find "super resolution " options anywhere in the menus, but the 3d gimmick seems to do something different from crashing the sw...

author: phenol
author_rank: Regular Contributor
timestamp: September 13, 2025, 06:30:19 pm
content: the latest ios update of the software seems to have broken the X3 feature (as tested on iPhone 13pro). toggling it does nothing but crashing the app occasionally. I'd refrain from updating to 1.0.8

author: slavoy
author_rank: Regular Contributor
timestamp: September 19, 2025, 08:32:54 pm
content: It’s astonishing how difficult it seems to be for many ‘manufacturers’ of thermal cameras based on the same Infiray microbolometer to create decent PC software. Starting from the release of the T2S+, which changed the image transmission protocol, I’ve had nothing but problems — currently, the applications for these cameras don’t run at all on my computer. It got to the point where I reinstalled Windows (now Win11) and… it’s exactly the same. On another PC I can’t even install Themp Master because the system flags it as malicious software, and on a Panasonic tablet the application window is cropped despite the standard 1080p resolution. On a clean system, errors pop up about missing Visual C++ libraries. I installed all of them – no change. And this is important for me, because I work with thermal imaging only from a PC. Somehow IRCAM Thermal Viewer has no issues with any camera but has no support for P3 yet.At the moment they removed Temp Master software from their site:https://thermalmaster.com/pages/download-center

author: puxe
author_rank: Contributor
timestamp: September 22, 2025, 10:20:02 pm
content: I've pretty much decided that one of the manual focus cameras would best fit my range of use cases.The two contenders are this P3 and the Topdon TS001. The included Topdon mount that removes the need to dangle the camera from the phone USB port is also looking attractive.Any opinions on whether this P3 has any advantages over the Topdon TS001?The prices are both similar (~£280).

author: jwehle
author_rank: Newbie
timestamp: September 25, 2025, 03:28:25 am
content: I see the Thermal Master Download center once again has a link to the Temp Master (P Series) software for the PC (dated 1 hour ago).

author: Fraser
author_rank: Super Contributor
timestamp: October 01, 2025, 12:29:41 pm
content: Sorin has just added a Thermal Master P3 to his microscope for PCB repair workTake a look at his video to see what an excellent addition the P3 is to his diagnostic capabilities. This camera has manual focus down to around 8am, with a 40 degree HFOV lens, so is perfect for this application. I love my P3 and have no hesitation in recommending it. There is a glitch with the PC software that means some older PC’s do not work correctly with it but this is being worked on. My P3 works perfectly with my HP Elitebook 830 G9 running Win11 on an i5 processor. It also works fine on my various Android mobile phones.https://youtu.be/vkfd8J_yZcc?si=pW69GOksqNk4HdsHSorry that I have not finished the full P3 review. I have suffered kidney failure and life is somewhat challenging at the moment. I will complete it when able but I am very unwell.Fraser

author: slavoy
author_rank: Regular Contributor
timestamp: October 02, 2025, 06:52:09 am
content: So, two days ago I launched the Temp Master app, which greeted me with a message about updating the app andthe camera’s firmware. After this operation, I no longer have p3 support on either PC or the phone.Fortunately, I got this camera for testing. Since the issue occurred, I’ve been waiting longer than usual for a responseQuote from: Fraser on October 01, 2025, 12:29:41 pmWishing you a speedy recovery, my friend

author: Fraser
author_rank: Super Contributor
timestamp: October 02, 2025, 09:33:12 am
content: Slavoy,Do you recall what version of firmware you installed ? I ask because I installed a firmware update around 2 weeks ago and had no issue with it.I could not do the update via the PC program so did it on my Android phone. I shall avoid installing any new update until we find out what has happened. Thank you for the warning.China is on National holiday at the moment so that could cause delays in responses to questions.Fraser

author: phenol
author_rank: Regular Contributor
timestamp: October 02, 2025, 02:28:25 pm
content: i got mine about a month ago and it updated itself from whatever to 2.17 as soon as i plugged it. Haven't received new firmware updates since then

author: slavoy
author_rank: Regular Contributor
timestamp: October 04, 2025, 09:58:16 am
content: I did a factory reset from the app menu (software 1.10.7, firmware 02.17) and it’s better, but every now and then I still get strange artifacts in the image, which the software tries to smooth out. With this software, the P2PRO also works, and when connected it runs flawlessly.Something is messed up with this camera.