Professional Cordless Circuit Tester
No Ground or clip required. No ground wire means no wire tangles nor time lost searching for grounding points. High Impedance Electronic circuitry. Safety V-groove needle accessory for piercing and carrying. Negligible current draw ( 20 micro-amps) is 10,000 times less than regular lamp type testers. This gives complete safety when working around sensitive electronic control modules and sensors. Operating range between 3 and 28 Volt DC in battery powered systems.