VERSATILE DETECTION: Cat. No. NCVT3P Non-Contact Voltage Tester automatically detects AC voltage in cables, cords, circuit breakers, lighting fixtures, switches, non-tamper-resistant outlets and wires CLEAR INDICATION: Bright LED illuminates green to indicate tester is operational and flashes red or blue and emits a beeping alert when voltage is detected DUAL OPERATING RANGE: With a power operating range of 12 to 1000V AC for low voltage and 70 to 1000V AC for standard voltage applications INTEGRATED FLASHLIGHT: Separate flashlight function can be used independently of the NCVT for illuminating workspaces BATTERY SAVING FEATURE: Auto-power off after inactivity helps conserve battery life, extending the device's usability