How To Test Amp Meter. Take the meter and clamp it around the wire you want to test. A basic device is all youd need for a parasitic draw test with a multimeter.
Amp Gauge Wiring 1 Always disconnect the ground lead from the vehicle battery before wiring any gauge. Instead of relying on your eyes test it with a multimeter after removing. If not you need to check the batteries.
There are many ports to plug in the red probe.
There are many ports to plug in the red probe. It should show zero ohms. The port can have a label of 10Amp which measures amperage of up to 10 amps or mA which measures up to 300m amps. Determine Your Amperage Rating for the Multimeter.
