The Associated 6039 provides complete testing for 6 and 12 volt systems in asmall package. Simple tests include a state of charge test, battery loadtest,starter test and charging system test. Easy to read digital voltmeter andammeter combine with the versatility of a carbon pile load to give quick andprecise determination of battery and charging system problems. Spring loadedload knob shuts off automatically. This 0-600 Amp 0-19 volts DC tester hasunique curved discs to prevent hot spots. Heavy duty clamps with “Flexi-Spring”cable guards provide added value. The load tester is an easy-to-read, digitalvoltmeter and ammeter combine with the versatility of a carbon pile load togive a quick and precise determination of battery and charging system problems. State of charge test Battery load test Starter test Charging System test Heavy-duty clamps Lightweight and easy to use 1 year warranty Made in the USA Load: 600 amp Ammeter: Digital LCD 0-600 Amps Voltmeter: Digital LCD 0-19.99 Volts DC Leads: 5.5 ft 4 AWG Clamp rating: 500 amp Shipping dimensions: (HxLxW) 11″x19″x14” Weight: 17 lbs. Accessory Cart: 6038C