Zotek/Zoyi Test Equipment MAILBAG BONANZA - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: June 20, 2025, 10:25:20 pm
content: Zotek (Zoyi) have sent in a bunch of test equipment, let's open them up and have a play. These are NOT reviews.00:00 - Mailbag Bonanza!02:30 - Zoyi ZT-DQ02 LCR Meterhttps://s.click.aliexpress.com/e/_ol2F1MC13:55 - Zoyi ZT-R01 IR Thermal Camera Multimeterhttps://s.click.aliexpress.com/e/_oCYWALE22:00 - Zoyi ZT-701 5MHz Oscilloscope Multimeterhttps://s.click.aliexpress.com/e/_oldA4ZQ34:20 - Zoyi ZT-N2 Smart Soldering Ironhttps://s.click.aliexpress.com/e/_ooB7Fos

author: ataradov
author_rank: Super Contributor
timestamp: June 21, 2025, 01:40:11 am
content: It is amazing how they manage to produce crap at such a pace. And if they just focused and made a few good tools, it may be worth looking into in detail.Right now not a singe thing here is even worth considering, you will just be throwing away the money.

author: Ranayna
author_rank: Super Contributor
timestamp: June 23, 2025, 02:15:21 pm
content: I haven't seen this video yet, i saw it in my feed though yesterday.Now i see the thumbnail here, and am surprised about this warning i see already in the thumbnail.A banner showing "Altered or synthetic content", with this "explanation" when i click on it."Sound or visuals were significantly edited or digitally generated"So Dave is a robot after all?Or is the autodubbing crap back?

author: ataradov
author_rank: Super Contributor
timestamp: June 23, 2025, 03:52:32 pm
content: It looks like this is a voluntary disclosure and creator must set a checkbox in a video properties. But I'm not sure what in that video would warrant that.

author: Kleinstein
author_rank: Super Contributor
timestamp: June 23, 2025, 08:16:06 pm
content: The DMM and scope combination could be nice for a current measurement. With modern consumers it is no longer for granted that the current from mains is still a sine or even close. Just to show a crude waveform would be a real gain. However the Scope/DMM only does voltage.The signal amplitude going down in the slower scope modes does not look like simple aliasing. Aliasing tends to give more like an unstable amplitude that can come back. It looks more like some averaging done to reduce the noise. In principle a good idea, but one should be able to turn such a feature off - maybe a point to read the manual.One could check if the USB at the scope is connected to ground: use the continuity or resistance mode of the instrument itself to check against the USB.Combining the battery test and LCR is a bit dangerous combination, especially with probes that look very similar from the probe end. Too easy to use the wrong terminals. In the manual they don't specify the 100 kHz for large capacitors - so they should at least show that one is out of range instead showing the value that is for off.Using only the 2 center contacts for the ref. capacitor should not use the isolation strip. this would keep the sense terminals floating. It nearly looks like they may have done the same mistake when doing the calibration - that would be stupid failThe correct reading with the wrongly inserted strip may not be coincidence.

author: EEVblog
author_rank: Unknown
timestamp: June 23, 2025, 11:25:42 pm
content: Quote from: Ranayna on June 23, 2025, 02:15:21 pmWTF, it's stuck on Yes and won't let me change it.Never had this issue before

author: EEVblog
author_rank: Unknown
timestamp: June 23, 2025, 11:31:16 pm
content: It looks like creators don't tick the box when uploading then Youtube might just decide to slap on the label and it's can't be removed. WTF.

author: rsjsouza
author_rank: Super Contributor
timestamp: June 24, 2025, 12:01:16 am
content: I knew that you couldn't be real, Dave! An AI creature that fooled us all those years...That is news to me. This switch stays hidden inside that tab "Additional Options" when you are publishing a video.I try to do due diligence to check this option, but I am pretty sure I forgot once or twice.

author: ataradov
author_rank: Super Contributor
timestamp: June 24, 2025, 12:08:02 am
content: I knew that soldering iron with a built-in multimeter is AI.

author: EEVblog
author_rank: Unknown
timestamp: June 24, 2025, 12:23:33 am
content: Quote from: rsjsouza on June 24, 2025, 12:01:16 amSame here. I can only assume I forgot to do it this time and some algorithm decided the videos fate.

author: thm_w
author_rank: Super Contributor
timestamp: June 24, 2025, 09:21:23 pm
content: The Hantek/DE-5000/and other LCR meter "solve" this kelvin isolation bar issue by making the probes go into the spring terminal section. But then you have a non-standard probe connection.I'd be tempted to maybe add a mechanical latch that opens and closes those spring terminals. Or as Dave says, have the insulating bar go way further down so its near flush with the top and then you can leave it installed and locked in place.Zoyi giving you 4 terminal banana is actually better than any(?) other handheld LCR meter, they just didn't execute it fully.