Boat battery tester
BIG12
Tempo
*Why guess how much energy a battery has? Instantly monitor the level on any 12-volt battery for adequate power
*Gauge will alert you to overcharges*Perimeter lighting on gauge face
*Temperature compensated for a more accurate reading
* Other gauges have a range of 8 to 16 volts but Tempo's battery energy gauge reads 11.8 to 12.7 volts for a more accurate reading that reflects the "dead" and "full" range of a 12-volt battery*Energy level is indicated as a percent level remaining on the battery
