ATD Tools 5503 Cordless Professional Circuit Tester

Tests circuits from 3 to 28 Volts DCLED Light & Buzzer IndicatorDoes Not Require a Ground Wire or ClipSafe for work on Automotive Computers, ECMs, Airbags, etc.Special V-Tip allows safe piercing and can be removed to test in hard-to-reach placesOperates on replaceable long-life Alkaline batteries (included)