Unlike conventional voltmeter readings, the BAAM Meter has a temperature compensated computer circuit, an easy to read expanded faceplate, and a dampened needle indicator for easy reading. Just plug the meter cord in to the vehicle's interior outlet.
Don't guess how much power your battery has....Instantly monitor the level on any 12-volt battery for adequate power with this Handheld Battery Indicator Gauge. The energy level is indicated as a % level remaining on the battery. The gauge will also alert you to overcharges.