ATD Tools 5503 Cordless Professional Circuit Tester

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