Pro'skit MT-1707 True RMS Multimeter - Page 1
Forum section: electronics / testgear

author: hussamaldean
author_rank: Unknown
timestamp: January 17, 2018, 06:59:17 pm
content: Hi all,I am planning to buy the following multimeterhttp://www.proskit.com/test-instruments/multi-purpose/3-5-6-true-rms-multimeterIs it good ? and I don't care about the fancy auto ranging thing

author: markce
author_rank: Regular Contributor
timestamp: January 17, 2018, 08:25:00 pm
content: Why? What are you using it for?Hard to find any precision spec at all. Seems to be 0.5% basic precision.Looks like another cheap rebranded Chinese DMM. There are better choices for almost any use.

author: hussamaldean
author_rank: Unknown
timestamp: January 17, 2018, 08:38:06 pm
content: Quote from: markce on January 17, 2018, 08:25:00 pmare you sure ?

author: markce
author_rank: Regular Contributor
timestamp: January 17, 2018, 08:39:30 pm
content: Have a look here:https://www.amazon.de/Multimeter-AIDBUCKS-Messger%C3%A4te-Amperemeter-Widerstand/dp/B01KBNGQAS/ref=sr_1_fkmr1_2?ie=UTF8&qid=1516221413&sr=8-2-fkmr1&keywords=Janisa+PM18CIt would do for low voltage hobby use, but a have you looked at Uni-T for that?

author: hussamaldean
author_rank: Unknown
timestamp: January 17, 2018, 08:43:48 pm
content: now I am confused 😐 😕

author: markce
author_rank: Regular Contributor
timestamp: January 17, 2018, 08:54:10 pm
content: Yep, could easily find more brands for the same thing. At least amaz is cheap and free shipping (EU).As a more serious alternative: have a look at the Uni-T 139C which is in the same low price range.Again: what will you use it for, hobby?

author: rsjsouza
author_rank: Super Contributor
timestamp: January 17, 2018, 09:26:12 pm
content: If you are going to use the multimeter for low voltage and low current systems (30~50V, 1~2A max) you can even consider the UT136 family (A/B/C/D), which is very well built and cost a lot less. They are very sturdy multimeters with lots of features (some models have temperature, others capacitance). There is a discussionat this link.If you plan to use the meter in higher voltage systems (110 or 220Vac, 15A max) you should be a bit more careful with the quality and reassurance of the meter. I would look for meters of the like of Fluke 101 (about the same price range as the one you are considering), the Brymen BM231 or the newest BM236R (not available at most places yet).

author: hussamaldean
author_rank: Unknown
timestamp: January 18, 2018, 03:10:25 am
content: Quote from: markce on January 17, 2018, 08:54:10 pmI will use it for low voltage and sometimes for high voltage measurementQuote from: rsjsouza on January 17, 2018, 09:26:12 pmI can get Uni-t UT139C by the ned of next week and Fluke is not available here in IraqI think I will go with Uni-t

author: markce
author_rank: Regular Contributor
timestamp: January 18, 2018, 05:00:55 pm
content: I will use it for low voltage and sometimes for high voltage measurementJust how high voltage?Uni-T 139C looks ok for low voltage and mains (230V~), most cheap meters are not (including some other Uni-T's).Next up would be a small Bryman (235 or one from rsjsouza's list), but at 2x the price.

author: shakalnokturn
author_rank: Super Contributor
timestamp: January 18, 2018, 05:17:54 pm
content: I definitely would not buy the pros's kit meter, or any mastech rebrand, the Uni-T is better quality for the money plus you get the autorange function that is handy even if you don't actually need it. (You'll get used to it fast!)You may also consider a decent second hand meter, with even better build quality than the Uni-T. I find used Flukes are highly overpriced here in France, but I can get hold of ITT Metrix MX40 or MX50 series for 15 to 50€, they'll beat any Chinese meter in the same price range. (The MX47, MX52 to MX56 are true RMS)

author: hussamaldean
author_rank: Unknown
timestamp: January 18, 2018, 06:11:48 pm
content: Quote from: shakalnokturn on January 18, 2018, 05:17:54 pmI already ordered Uni-T 139D and it is on the way, ETA 2 DaysFluke is expensive and I don't have the budget for such pricy multimeterQuote from: markce on January 18, 2018, 05:00:55 pmsometimes I need to measure the main voltageI already have Uni-t UT33C and I tested it with main voltage for couple hours and went like silk so I continued using it as my main daily multimeter

author: rsjsouza
author_rank: Super Contributor
timestamp: January 18, 2018, 07:11:58 pm
content: Congratulations on your purchase! The UT-139 is highly regarded around here and there is along threadabout it.

author: markce
author_rank: Regular Contributor
timestamp: January 18, 2018, 07:42:49 pm
content: Glad you changed your choice to the Uni-T 139. I would use the UT-139 as your main multimeter and do NOT use the UT33C for mains measurements. Really dangerous!!

author: hussamaldean
author_rank: Unknown
timestamp: January 18, 2018, 09:00:22 pm
content: Quote from: markce on January 18, 2018, 07:42:49 pmsee what happened to the UT33CI put the test props on 10A port and I want to measure the main voltage and kaboom

author: markce
author_rank: Regular Contributor
timestamp: January 18, 2018, 09:14:40 pm
content: Lucky you. Not enough energy to blast the case to pieces. There is no fuse in the 10A and not sufficient overvoltage protection in the UT33C. Use only for low voltage, low energy (!) electronics.

author: hussamaldean
author_rank: Unknown
timestamp: January 19, 2018, 04:23:03 am
content: Quote from: markce on January 18, 2018, 09:14:40 pmyeah, the circuit breaker in the power cord pupped and saved me, thx god