Non-Contact Voltage Detectors, (2) AAA Battery, 50-1000 V

Features : Use to detect voltage in outlets, lighting fixtures, circuit breakers, wires, and cables or to find a break in a wire | Patented automatic self-test verifies the integrity of the unit | Bright LEDs flash and audible alarm sounds if voltage is present | Silent-mode feature for use in quiet settings | Automatically turns off after five minutes of non-use to conserve battery life | Low battery indicator