Noncontact detection of voltage in cables, cords, circuit breakers, lighting fixtures, outlets, and wires. When voltage is detected, a high intensity, bright red LED illuminates and a warning tone sounds. Discrete digitally controlled On/Off power button. Auto power-off feature conserves and extends battery life. Microprocessor controlled low-battery indicator, and tester shutdown. 50 to 1000V/AC power operating range allows broad application. Lightweight compact design with a convenient clip to fit securely in your pocket. Includes: Insert card with integrated owner's manual, and (2) "AAA" 1.5V batteries. No. NCVT-1: Type: Non-Contact, Multifunction, AC Voltage: 50V to 1000V AC, DC Voltage: N/A, Powered By: 2 AAA Batteries (included), Lead Length: N/A, UL Listed: Yes, ETL Listed: No, Pkg Qty: 1, Package Type: Clamshell