Product Review

Tonny 12V Car battery monitor, It shows very clear the status of your car's battery, It protects the engine computer and 12-volt accessories from damaging surges when jump starting or recharging. The LCD screen displays the measured voltage with a bar graph to indicate battery charge level quickly identify the battery's charge status.

Parts Diagram :
Pivoting Head - Pivots for easy viewing and angle adjustment
Voltage Reading- Refer to battery state of charge chart for voltage reading levels
Charge Graph - Displays the measured voltage to indicate battery charge level
Red LED - Indicates bad test result
Alternator test :15.11-16V
Battery test : 11.99 - 0V
Yellow LED - Indicates potential problem or low voltage
Alternator test : 14.51 - 15.1V
Battery test : 12.00 - 12.60V
Green LED - Indicates good test result
Alternator test : 13.51V -14.5V
Battery test : 12.61 - 13.5V