This is DSN-VC288 LED Digital Ammeter–Voltmeter. This meter will measure up to 100 VDC with a 0.1-volt resolution.
This can be supplied anywhere from 4 volts DC up to 30 VDC. This is a separate power supply that is isolated from the source, it is possible to use the same supply but it seems to affect the amp meter reading. The 3 wire harness is used for a ground that connects directly to the battery or supply ground of the load.
- It measures up to 100V and 100A DC.
- Very handy and small in size.
- It requires a power supply of 4-30V Max.
- 100% Brand new and high quality.