DYVO is a circuit and component tester designed for automotive circuits and all other 12V systems. It can easily find opens, shorts, and resistance issues. Its automatic load test identifies wire and circuit problems. DYVO can quickly compare two circuits at the same time and offers technicians to see live battery voltage during testing. It will also alert users if the battery voltage drops too low or goes too high (overcharging). It features a computer safe mode as well as bright colored LEDs with pass/fail indication.