PRODUCT FEATURES:• Detects voltage in tamper-resistant and conventional 15Aand 20A, 120V outlets• 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• Safe, non-contact voltage detection• Use to detect voltage in outlets, lighting fixtures, circuit breakers, wires, and cables or to find a break in a wire• Automatically turns off after five minutes of non-use to conserve battery life• Low battery indicator• Designed and assembled in USA• (2) 1.5V AAA batteries included• Lifetime Warranty