Associated 6/12Volt 500Amp Carbon Pile Load Tester AS6034

500-Amp Carbon Pile Load Tester.
6/12 Volt batteries. Two large 4.5″ Analog meters display amps and volts.
DC test leads are 2.5′ 4AWG cable.
Unit comes with manual adjust knob.
Buzzer sounds after load is engaged for 15 seconds.