I bought 3 of these units. I have connected the 3 units in series to 1 power source to test the measurement precision at different V and A levels (See the attached pictures). Also I have drawn a circuit diagram how you may to connect meter... pros: cheap; measurement of V and A in separate circuits possible.... Read more
this has a nice bright display giving clear information. When I have fixed this in place I'll probably buy another. Cons:
As with many DX products this had no basic info provided with it on what wires were for what. Thankfully as with many DX products others had already reviewed this item and provided ... Read more
I'm measuring the power outlet of a DIY 12V DC power supply. Perfect solution for that. Be careful when making connections and always use a fuse. Quality seems to be OK, no instructions but the information needed is available on the product page. Price is affordable. Read more
device accurately measures the measures I have laboratory voltmeter. The only thing that has came as a surprise is the size .inak I am very happy to use it 3 months and no problems.Equipment used to measure solar cells. I recommend to anyone who needs to measure voltage and current Read more
The unit works well and never stopped since we arrived innovember 2013 . Was installed in a vehicle at dashboard and connected to the car battery to measure consumption of stereo and battery voltage.
Good quality and excellent bright. No shunt necessary. No manual at all. I did a researched a lot to ... Read more
Cheap, simple and effective U need a little electrical knowledge to use it becouse no wiring diagram supplyed ! Wiring is simple: The power supply line (thin red and black) u need only use of the RED wire to make a stable + voltage to supply (5-30 VDC). The THICK 3 wire is following: Thick Black to the ... Read more
very cheap and light. The range of voltmeter is automatic. Very small. Easy to installer in a box. very easy to calibrate the voltmeter and the ampmeter with two screws. the scale of the ampmeter is totally useless for small measures (150 mA, 260 mA, ...) . Is very complicated to connect the ampmeter.... Read more
This little meter displays both Volts and amps, it seems pretty accurate and Is clear and easy to read. Very useful for knowing what's going on with your device load. Difficult to hook up correctly, there are no instructions included, The instructions I could find were in the picture on the item's page.... Read more
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