What is the smallest multimeter - Page 1
Forum section: electronics / testgear

author: ez24
author_rank: Super Contributor
timestamp: October 21, 2015, 05:03:18 am
content: Looking for a small multimeter to fit inside a caseI am looking at the longest dimensionI came across this one at 5.1 inches long :Amprobe DM78Chttp://www.amazon.com/Amprobe-DM78C-Credit-Card-Multimeter/dp/B0024V97V6------------This one at 4.6 inchVictor VC921http://www.amazon.com/gp/product/B00C3UKEEM/ref=pd_lpo_sbs_dp_ss_1?pf_rd_p=1944687622&pf_rd_s=lpo-top-stripe-1&pf_rd_t=201&pf_rd_i=B0024V97V6&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=1QCMGTFEFV4FSABJ41AY-------------------Extech DM110 Mini Pocket MultiMeter4.2 incheshttp://www.amazon.com/Extech-DM110-Mini-Pocket-MultiMeter/dp/B0012W2J0Y/ref=sr_1_1?s=electronics&ie=UTF8&qid=1445403219&sr=8-1&keywords=Extech+DM110+Mini+Pocket+MultiMeter----------------------NEEWER® Mini Pocket LCD Digital Multimeter Voltage Meter AC DC Tester DT-95B3.9 incheshttp://www.amazon.com/NEEWER%C2%AE-Pocket-Digital-Multimeter-Voltage/dp/B00DBU0YKW/ref=sr_1_9?s=hi&ie=UTF8&qid=1445402749&sr=1-9&keywords=mini+multimeter------------------------Any smaller ones out there?Min requirements measure volts, amps, ohms I do not care about Cat rating. The only thing I care about is size, not quality. Digital onlythanksthanks

author: kwass
author_rank: Frequent Contributor
timestamp: October 21, 2015, 05:42:34 am
content: Since you only care about size, consider this analog meter:http://www.ebay.com/itm/New-Electric-AC-DC-OHM-Voltmeter-Ammeter-Multimeter-Multi-Tester-MF-110A-/271630865527It's only 90mm.

author: retiredcaps
author_rank: Super Contributor
timestamp: October 21, 2015, 05:48:09 am
content: Uni-T UT20B 95 mmhttp://uni-trend.com/UT20B.html95mm = 3.74 inch

author: Psi
author_rank: Super Contributor
timestamp: October 21, 2015, 05:56:43 am
content: I've always been tempted to design a dmm the size of 3 credit cards stacked on top. So it could fit in your wallet easy. It would have probes that slide inside.Something like 3 sheets of 0.5mm pcb with the inner one being just a frame.Components would be smt on inner layers and display would be matrx of reversemount leds.It would be fun to design something like that. It could never be mains rated though

author: kwass
author_rank: Frequent Contributor
timestamp: October 21, 2015, 06:11:36 am
content: Quote from: retiredcaps on October 21, 2015, 05:48:09 amThat's the smallest DMM I found too. It uses an A23, 12V battery, highly unusual in that most of these pocket DMMs use coin or button cells and run at 3V.

author: retiredcaps
author_rank: Super Contributor
timestamp: October 21, 2015, 06:22:59 am
content: Quote from: kwass on October 21, 2015, 06:11:36 amI remember seeing this meter at my local electronics store about 3 years ago. They wanted $20 CDN MSRP for it. I laughed!I found two internal pcb pictures.http://govnoproger.ru/zhelezo/uni-t-ut20b-obzor.html

author: ez24
author_rank: Super Contributor
timestamp: October 21, 2015, 06:23:10 am
content: Quote from: kwass on October 21, 2015, 06:11:36 amThe 12v battery is a surprise but I am going to hard wire in the meter so this is not a deal breaker.A 34 page manual on this cheap meterhttp://uni-trend.com/manual2/UT20B%20Eng%20Manual.pdfAlso this has a square wave output test that I cannot figure out. Will make a new post on this.

author: Martini
author_rank: Regular Contributor
timestamp: October 27, 2020, 04:12:24 pm
content: If money is no object, I think this wins the contest:https://shop.pokitmeter.com/products/pokitmeterI too am wondering how hard it would be to build a really small meter with retractable leads that wouldn't do high voltage nor high current

author: DrG
author_rank: Super Contributor
timestamp: October 27, 2020, 05:57:55 pm
content: Honorable Mention?89 x 47 x 129 mm / 3.5 x 1.9 x 5.1 inch

author: 5618
author_rank: Newbie
timestamp: October 30, 2020, 05:40:41 am
content: Maybe Allosun EM3082... similar to an old Radio Shack one from 30 years ago.

author: eKretz
author_rank: Frequent Contributor
timestamp: October 30, 2020, 08:41:47 am
content: I've got a couple of these lying around the house, pretty handy for simple stuff. They do voltage, resistance and diode (voltage drop) testing:https://www.google.com/amp/s/softsolder.com/2017/06/02/beckman-dm73-circuitmate-back-from-the-dead/amp/I think this is a similar meter but it's of current manufacture. Only capable of 200mA current measurement unless you use a clamp:https://www.testequipmentdepot.com/extech/multimeters/pen-style-digital-multimeters/pen-type-digital-multimeter-200vac-dc-200aac-dc-non-contact-voltage-detector-381676a.htm?ref=gbase&gclid=CjwKCAjw8-78BRA0EiwAFUw8LMn20-V86OcAqDBszkvngc_yqdJt2iKJ4mvWZO9hQf9zrpJmFyNFcBoCWqAQAvD_BwE