VooGenzek 2 PCS 0.28" LED Voltmeter Ammeter, Red and Blue Detector Voltage Current Meter Panel Amp Volt Gauge, DC 0-100V 10A for 12V / 24V Multimeter Amperage Meter Volt Amp Gauge Panel

good thing: it works great. bad thing: it uses the negative rail.

The current measurement shunt is on the ground side. If you do use current measurement, then leave the small black negative wire on the voltage measurement connector floating. At first I mistakenly connected it to ground, and was getting a large current measurement error. When I let it float, the measurement was pretty accurate. The instructions in the pictures on the Amazon page say, "No need to connect". Ideally it would say, "Don't connect if measuring current".

Used to monitor the output of two solar panels. Worked well. Not to confident the connector would last long at 10A, so soldered wires to the pins. Accuracy was a little off, but for indicators to give an idea of whats going on, they are accurate enough. No instructions with the item, so remember to print out the diagram in the listing for future reference.

Displays amps and volts from my small scale solar array. Been working ok for12months so far.

Buy it good

I use 2 off these to measure voltage and current and these match my DVM readings. Fitting in a cut out hole works best if you first take the unit out of the bezel. Then fit the bezel, then put the unit back in the bezel. Else the unit blocks the locking pushy things and you may break something. With before procedure it locks very easily in the cut hole.

Series shunt resistance much bigger than competitor versions so useless for higher currents. Unable to calibrate V and A independently. Waste of money

No instructions on how to wire it up. However I have a similar item from another manufacturer which describes how to wire the item up so hopefully it will be the same.

fungerar bra

l'ampèremètre donne une bonne indication de la consommation de courant dès 100mA, le voltmètre est plus précis (+6%) ce qui donne un très bon produit. De plus j'avais déjà utilisé ce produit, il y a quelques année, toujours opérationnel, il s'avère très fiable dans le temps et j'en suis très satisfait.

Buon articolo, funziona bene.

Ottimo prodotto

Habe das Teil zur Aufrüstung eines alten Statronic Leistungsnetzteils verwendet. Wollte eine Anzeige nur mit roten Leds (nicht rot und blau)! Funktioniert einwandfrei und zu meiner vollsten Zufriedenheit!