This is among the items that gave me the most for each dollars spent at DX. The volmeter is fairly precise, <2% difference with a know reliable Fluke multimeter, and just had to do a slight adjustment with one of the two potentiometers at the back to get a reading that is within 0.5% with the value i ... Read more
Impression:Can't beat the value for each dollars!;
I bought this DIY meter for one of my projects. From the first glance on the packeging I got really excited because it was exactly as I thought it would be. Pro's: simple design and very easy to install, very cheap, the LED's work proparly, quick refresh rate, very accurate and many more that DX.com ... Read more
Very tidy unit with good lighting. But would be nice to have a proper wiring diagram, going by what I could see on website. You only see the front but not the back-end, of wiring which was confusing... hence blown 2 units. It's the amp side that never worked? Read more
Nice small display, mounts easily, I added it to a 12V power supply I had that had no meters. Accuaracy is very good after trim pots adjusted. Someone else claimed they couldn't mount it. This is true if you try and mount it with the pcb installed. Removing the pcb allows the bezel tabs to flex. Mount ... Read more
Neat, well made units. I bought two for use in a car with two battery systems. Good clear displays although possibly too bright for use on a car dashboard without some kind of attenuation. (Sticky tape usually works well to tone down bright displays.) I only tested them at around 12v but they seem quite ... Read more
Very good add-on which allows control of your electrical system and therefore reduces the possibility of getting stuck on the road. Will efficiently indicate the battery condition and the alternator function. Also will detect unexpected discharges. Would appreciate a installation diagram. Unfortunately ... Read more
Compact, easy to install, pretty precise measurement of current and voltage (also can be re-calibrated). Correct shunt was shipped, so I did not face 100 A/100 mv shunt problem Shunt could be smaller, that limits usage abilities, but it's OK for 50 Amps. Some people may have face problems mounting it ... Read more
Voltmeter and Ammeter are very good calibrated. I tested it with my multimeter and it was fine 0.1 accuracy. Scheme is not correct. For real accuracy connector with a black and red wire must be connected to another power supply 0-30VDC. I use battery Ni-Cd 10000mAh. It is not possible to use it on same ... Read more
The voltmeter is very precise measuring with a multimeter, gave a difference of only 0.5V, not counting that has a refresh rate very good, as quick as one multimeter with LCD.
The ammeter works well, has to be the highlight in beautiful Azul, which in my opinion is perfect for differentiating the voltage ... Read more
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