Astro Pneumatic 7760 Cordless Circuit Tester

Ground wire or clip not required Safe with ECMs, Sensors, Transducers, Airbags, etc. Designed to be used on DC powered circuits with voltages between 3 and 28 volts Special designed V-Tip needle allows safe piercing and prevents side-slipping when piercing wire's insulation. V-Tip can be removed to test hard to reach places Unit works with replaceable long-life alkaline batteries; Made of rugged chrome metal