Easy to read meter. Works on 6 and 12 volt batteries 50 amp load test for 6 volt batteries 100 amp load test for 12 volt batteries Tests 6 and 12 volt batteries - up to 1000 CCA Top-mounted rocker switch for easier operation Super-grip, heavy-duty color-coded battery clamps Easy-to-read meter - accurate and shock resistant Baked enamel, steel case - ventilated to keep cool Rubber insulated carrying handle - for comfort and safety.Battery Load Teter, 6 and 12V Batteries up to 1000 CCA.