Fluke BK120 SmartTrace Switch Finder and Socket Tester

A 4-in-1 tool that functions as a switch finder, NCV detector, socket tester, and a bright LED flashlight. With audible and visual alerts, it eliminates guesswork when locating circuit breakers. Features a unique dual sensitivity NCV mode for non-contact voltage detection on terminal blocks and power cables. The transmitter includes a built-in plug tester with an easily visible LED, allowing you to verify correct wiring for both standard outlets and GFCI outlets.