This Dual-Range Non-Contact Voltage Tester automatically detects low voltage and standard voltage. A bright green LED will tell you the tester is working and also functions as a worklight. The light flashes red and two distinct warning tones sound when either low or standard voltage is detected. Red...

The NCVT-3 is a non-contact voltage tester with an integrated flashlight. The voltage sensor detects 12-1,000V AC and indicates the presence of voltage in cables, cords, circuit breakers, light fixtures, switches, outlets and wires as well as AC voltage in doorbells, thermostats, low voltage lightin...