The Milwaukee Circuit Breaker Finder w/ LED is used for identifying the correct circuit in an electrical panel in residential and commercial applications. The Circuit Breaker Finder is comprised of a Transmitter and Receiver that can be used for standard 120V panels with a safety rating of CAT II 135V. This all-in-one solution stores the Transmitter into the Receiver to allow for easier storage and transport on a jobsite. With the LED work light, you can easily work in dark areas with more visibility, and the over molded grip provides durability and comfort for all applications. The Milwaukee Digital GFCI Receptable Tester is designed to reduce the risk of electrical shock generated from outlets. The over molded grip provides durability and comfort for all applications. Additionally, the visual indicator light turns on indicating the activation of the GFCI test, if functionally correctly. The LCD screen offers clear reading of the wiring conditions of an outlet, voltage, and trip time. LED visual indicators help determine the wiring conditions of an electrical outlet. Wiring conditions indicated: hot & ground reversed, hot & neutral reversed, open hot, open neutral, open ground, and correct wiring.