General Technologies Corp GTC CT8002 Cordless Circuit Tester, Black

Professional cordless computer safe circuit tester constructed in rugged stainless steel requires no ground wire or clip and a safety V-groove accessory is provided for piercing and carrying.
Negligible current draw ( 20 micro-amps) is 10,000 times less than regular lamp type testers and is completely safe when working around sensitive electronic control modules and sensors.
Operates between 3 and 28 Volt DC in battery powered systems, providing visual (LED), audio (sound) and tactile (vibration) feedback when a positive voltage is detected.
Solid state high impedance electronic circuitry
Operates on a single AA alkaline battery, which is included with the unit.

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