SKU: B005HOPRRK Category:

Auto ranging Digital Clamp Meter Uni-Trend, Uni-T UT203

(10 customer reviews)


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    This is high quality clamp meter. Digital clamp meter UNI-T UT203 is a reliable and low consumption clamp multimeter. Digital clamp meter UNI-T UT203 measures AC/DC voltage and current, resistance, frequency, duty cycle, also performing diode check and continuity test. This clamp meter has overload protection. Measuring functions: ◦AC/DC voltage ◦AC/DC current ◦Resistance ◦Temperature ◦Diode check ◦Continuity test ◦Duty cycle Auto ranging Data hold function Display “REL” mode Sleep mode Low battery display 28 mm maximum jaw diameter Measurement update speed 3 times/second Compact and comfortable design Compliance with safety requirements IEC 61010 CAT II 600 V, CAT III 300 V Specifications: DC voltage Range 400 mV / 4 V / 40 V / 400 V / 600 V AC voltage Range 4 V / 40 V / 400 V / 600 V DC current Range 40 A / 400 A AC current Range 40 A / 400 A Frequency Range 10 Hz / 100 Hz / 1 kHz / 10 kHz / 1 MHz Included: UT203 Meter Test Leads User’s Manual




    10 reviews for Auto ranging Digital Clamp Meter Uni-Trend, Uni-T UT203

    1. Daniel A Goldman
      5 out of 5


      I am using the UT203 clamp meter to diagnose a parasitic drain in my car. I like it (the clamp meter, not the parasitic drain). The meter works well, looks nice, has a nice case, and wasn’t all that expensive.

      The UT203 is pretty simple, does not try to do a whole bunch of things, is somewhat limited, but does the DC amps (which is what I need), and is pretty easy to use. I made a loop of wire, looping the wire eight times, so the DC amps is multiplied eight times. It also works with just one wire, of course. But using the loop makes readings more stable, easier to distinguish from any small drift in the zero value.

      The "REL" button is still unclear me what it does, despite reading the manual. I thought it zeroed out the reading, and that’s probably true. Anyway, it doesn’t really matter when I use the loop of wire, because the overall reading is so much higher than any small zero drift. I’m going to post to the question section, see if anyone can explain the "REL" button.

      I have also tried out the other functions, those using the leads, and they work well. Normally, I use a separate multi-meter, but it’s nice to have this as a backup.

      When I ordered, it took several weeks to get here. I think the listing should make the delivery time more obvious. But it was mostly my fault, I should have checked. Just warning others.

    2. sausage_guy
      5 out of 5


      I’ve had this meter for about 6 months. Originally bought it to measure DC current in my two smallish solar installations. The clamp-on action is a lot easier than accessing the conductor, so you can run over all the wires in a minute looking for energy leaks or verifying current flow. The amperages in our 1000 to 2000 watt installations can run around 70 A and I found that my other multimeters couldn’t handle this amperage and regularly blew fuses or just blew up. This little meter, being able to handle 400A, is not bothered by these currents and I found I was using the other functions. Now it’s the only meter in my toolbag, the others are in the closet. You can even switch it to AC and work on inverter outputs. This is a robust unit fit for real-world use in tough conditions and on the road. I just bought another for my geek buddy, who has every tool imaginable, because he coveted it. When we work together we’ll use this meter instead of the professional tools that fill his garage. There is a manual for it, btw, on line at the manufacturer’s site and it is comprehensive.

    3. Hoi Leung
      5 out of 5


      As a born engineer, I always want a clamp meter. Never got one because of the high cost.
      I recently installed a solar panel and want to make sure all the connections are good. A clamp
      meter is just the answer. It works great and I can make all the DC current measurement accurately.
      It is also a digital multimeter. Only wish that the current spec can be a bit more sensitive, like 4 Amp.,
      on top of 40 Amp and 400 Amp. Would recommend it to anyone that needs AC and DC measurement.

    4. fmacmann
      3 out of 5


      I wasn’t expecting this to be the best meter since the price was on the lower end.

      When it works everything seems to be fine. A few times it refuses to register anything when I clamp it around wires. I know it is not the wires because sometimes it works and sometimes it doesn’t.

      I like that it came with a nice carrying case.

      Also it is great how everything is pretty simple on it and has just the useful functions that an everyday joe would use apposed to a ton of stuff for the professional.

    5. Mohamed
      4 out of 5


      Very nice, I like the size it’s not big as the other clamp volt meter, easy to use, it’s battery is commen you can find every wher.

    6. Maria Collazo
      5 out of 5


      Buena calidad

    7. ukeboy57
      4 out of 5


      I’m old school with the AMPROBE clamp on meter as my first choice. But after busting 2 units I switched to the rugged “open” style FLUKE AC probe. Then just this year I heard someone measuring DC amps with a clamp on meter! Space age or magic? A little computer (dedicated ckt) can now measure DC amps and AC frequency. But these new meters run in the same price range of a laptop computer! Ok, I came across the Uni-Trend UT203 for a price well below what you would find in the stores. It comes in a nice case with heavy duty webbing and zipper. The meter works as stated along with the DC amp readings. Perfect for Solar Panels, Battery checks, etc. The probes wires could be a bit heavier but it’s what you would expect for the price. They are standard probe plugs that can be replaced with 3d party probes. There is an audio response on the diode test function. I’m not sure if this function works as a continuity tester. Testing continuity is a bit more critical on solar connections so I just use the Ohm readings on the most sensitive scale. I’m a P/V solar repairman.

    8. grossman83
      4 out of 5


      I love Uni-T. I bought this because years ago a friend gave me his Uni-T multimeter because he had just got a Fluke. I like the Uni-T as much as any Fluke and it’s half the price. When I need a current clamp I considered a Fluke because I appreciate quality tools and hate cheap crap. However, given my good experience with the first Uni-T I decided to give them a shot. I’m glad I did. The product is good and I saved about $100.


    9. fonepwr
      5 out of 5


      Purchased this meter to use for solar and wind turbine generators and AC/DC circuits. Measurements where very accurate when compared to numerous different charge controllers and inverters for current measurements. Easy to use with the clamp on, great price. Have Flukes and Greenlee meters and this one is now my favorite. Why cant us Americans make these ? Thats our economy and governments problem, we dont make much here anymore and no one wants to pay more. Sucks.
      Licensed Building Contractor here in So Cal for 20+ years and I purchase the best tools and equipment for what I can afford. Sometimes they’re American, sometimes they,re Chinese. Thanks NAFTA ?????
      Update 6-2016, Selection Knob has started to malfunction. Digital read out will fluctuate from OL. to zero readings and wont stay on one setting. Well for almost 3 years it was ok. $30 so I got some use out of it.. Next meter I will spend $60 and see how long that one will last !! hahaha !!

    10. Eric F
      4 out of 5


      Worked for troubleshooting parasitic current draw on my Honda. Cant find another clamp style DC current meter for $200. It is not very accurate under say 2 amps being about 1 – 2 tenths (.1) of an amp off compared to an inline multimeter I had. But, it was close enough for me to be able to isolate the offending relay that was killing my battery.

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