Review on 🔴 5-Pack Red Mini Digital Voltmeter DC 3V-30V 0.56 Inch Two-Wire LED Panel Digital Voltage Meter by DaFuRui by Colton Scheehl

Nice little meter; I really like it! BUT. Remember that the negative side of the ammeter is internally connected to the negative side of the power supply and voltmeter. This means its USE is limited to projects where it is acceptable to control the current on the negative side of the load. I consider this undesirable, it would be better to monitor the supply current, but I was able to change my wiring. However, many applications do not allow this. If the ammeter was insulated I would give it 5 stars. Accuracy seems "not bad for a $7 meter", a few tenths of a volt or amp.