Klein Tools® 50-1000V AC Non-Contact Voltage Tester
Provides non-contact detection of voltage in cables, cords, circuit breakers, lighting fixtures, switches, outlets, and wires. A high intensity, bright green LED indicates the tester is operational and aids in illuminating the workspace. When voltage is detected, a high intensity, bright red LED illuminates and a warning tone sounds. Offers a discrete digitally controlled ON/OFF power button and the auto power-off feature conserves and extends battery life.