UNI-T UT210D/UT201E Digital Clamp Meter True RMS Voltage Resistance Capacitance Multimeter Temperature Measure Auto Range Electrical (ABS)

Brilliant little clamp meter very accurate and easy to use

For the price, this handy little Meter/Tester is well worth buying! The fact that it measures not only AC but DC Current too, is worth the price in itself. To date, I am very impressed. Granted it isn't perfect but it's pretty damned close. Acceptably accurate, even if you have to keep 'zero-ing' to obtain an accurate reading. The probes that are included are a tad slow when testing for Continuity, but this is down to the probes rather than the Tester. As such, if you're fussy, you may want to use some better-quality ones. Also, the included storage bag is a little soft and flimsy. It's better than nothing but a harder case would provide better protection..... Again, for the price, one can't really complain. I'm left-handed, so the trigger being situated on the left, works Very Well for me, whereas if I hold it in my right hand, I find it awkward to use the trigger but maybe you Right Handers, don't have that issue! All in all, a Very Nice bit of kit that is very handy...... Literally, as it sits very comfortably in one hand, is simple to use and view the readings which are very/acceptably accurate. Basically, Highly Recommended!!!

Nice solid feel, but I wouldn't think it would last too long being bumped off the bench onto a hard floor. This is the best amp clamp I could find for under £50, which was my budget, considering I already have a couple of traditional multimeters. I needed an amp clamp to measure current without breaking a circuit and voltage in cables where accessing terminals is difficult to reach and manage current spikes on load. You can read the spec for this and compare with other models in the UNI-T range, so won’t list spec here. It is easy to use and performs well, the clamp opens to about the width of your finger which is enough for small applications. Voltmeter is accurate down to 0.01V in the voltage range and 10mV in the millivolt range. Current is not as accurate. If you are measuring large current, the Amp range is acceptable but in the mA range, it could make difference depending on the component requirements, TV, computer, PSUs, other sensitive electronic circuits, but for general indicator for diagnostics this is good enough for the price. I do find the auto ranging function sometimes not performing at all, and sometimes taking a long time, sometimes having to constantly select the AC/DC switch or the rotary dial. I would like to see auto ranging for current without the need to select 2A and 20A, sometimes the meter struggles to display reading appropriately. I needed to see mA but the meter decided to display A range, removing my need to see current value to the accuracy I needed to measure, 0.01A could be anything from 100mA to 199mA and needing to determine 150mA made using this a bit difficult. I have not checked but other amp clamps in the range might perform better but I did not check and suspect the price would easily go over £50 I would also prefer the meter to either have a mechanical AC/DC switch or an AC/DC setting with memory, so not having to constantly switch to DC every time I switch the meter off or change the dial, because it always defaults back to AC.

A very good clamp meter. Tested thoroughly on DC low currents and seems quite accurate. Easy to use. Good display.

As an Auto-Electrician, I have been after an accurate AMP-Clamp for quite some time, although not as reliable as putting a meter in series, a reliable AMP-Clamp can save alot of time when carrying out initial fault finding. I have used expensive AMP-Clamps but their price from the likes of Fluke, MAC and Snapon, all have been either unable to read the required 0.001AMP range or far to expensive for the job intended. A Pico-Scope is the go to for accuracy but the hassle of setting the thing up for something as simple as a parasitic drain, doesn't warrant the extra time. My plan was to buy a relatively inexpensive AMP-Clamp, This is what I bought and these are my thoughts/results. Its absolutely awesome, after some testing, I would buy another in a flash. Again mainly used for parasitic drains, the basis of my testing was low current measurement. As with many clamps, zero the meter holding the clamp as close as possible and in the same direction of flow. The earths magnetic field can make fluctuations in readings, this meter coped very well. All tests were checked with my calibrated workshop meter. All tests were using DC. First test was 12v flowing through a 100 ohm resistor, {12/100 = 0.120} this would be read as 120ma, not mega low but a test neither the less. Result - Absolutely spot on (photo) Second test was a measurement of a 50ma Fan, the measurement I received from the clamp was 51ma, Still happy 3rd test was on an actual vehicle with a complaint of a battery drain. Usual drain would be under 15ma on this particular vehicle, I see alot of these cars too and parasitic drain are not uncommon, I must admit, this was the main factor for my buying this meter, in this case its an Aston Martin DB9. Results - Drain found - 100ma After removal of Parasite - 9ma Tested to be sure with a meter in series, all reading were correct, I now trust this meter. After some more tests, i found the meter to be very accurate at DC measurement, with the odd reading out by 1 or 2 ma at times. very much value for money, an improvement to the device would be to improve the back light, as you can see from the photos, its not great.

This is a brilliant meter, well made, compact and versatile. Like most people reading this review I thought that clamp-on meters could only measure a.c. current. But this meter genuinely measures d.c. current. The meter can indicate currents as low as 1mA but as may be expected the effect of the earth’s magnetic field can cause errors and care must be taken to zero the meter in the orientation in which it is to be used before making a measurement, otherwise errors as high as 50mA be result. I’ve not done a detailed estimate of accuracy but when measuring d.c. current I would expect an error of +/- (5 + 10%) mA. So, it is best used for fault finding rather than precise measurement. N.B. This meter can be used for a wide range of tasks but you cannot use the test probes to measure in-circuit current.

Good bit of kit, pocket size and accurate

Before use, I verified the DC current and voltage accuracy of this instrument using recently calibrated equipment (typical accuracy 0.05%) and was very impressed with its performance. For low currents (0-100mA) the meter was measuring within 3mA of the actual current at higher currents (0.1 to 50A) all readings were well within the specified 2% (Did not test between 50A- 100A). The voltages were within specification. The only thing to be aware of is the meter does take some time to settle to the correct reading so if the current under test is varying reasonably quickly (within say a period of 10 seconds) then you may have difficulty with the accuracy, so for this case would recommend a current shunt. For the price this is an excellent instrument for current measurement where you do not want to or its not practical to break the circuit under test.