Klein Tools NCVT1P Voltage tester, 1000V, Continuity Check, Battery Powered, CAT IV

The Klein Tools Non-Contact Voltage Tester detects standard voltage in cables, cords, circuit breakers, lighting fixtures, switches, non tamper-resistant outlets and wires. A bright green LED indicates the tester is powered on. It changes to red and an audible tone sounds when voltage is detected.

Auto power-off
Traces open-ended, non-energized wiring when used with Toner-Pro Tone Generator (VDV500-063, sold separately)
Terminal block on probe to confirm the toned pair has been located
Low battery indicator