TecMate TS120N Battery Tester 12 V

OptiMate Test TS120 - Battery Monitor and Tester

OptiMate Test will display the battery rest Voltage, the charge system Voltage with the engine running and the cranking Voltage - effectively a load test using the vehicle's starter motor.
OptiMate Test is an ideal tool to have in the toolchest for workshop use. Know 100% that your battery and charging system are both in good reliable condition. Totally weatherproof; Fast and easy to use