Milwaukee GFCI Receptacle Tester is an essential tool designed to reduce the risk of electrical shock from outlets. It features an over-molded grip that enhances durability and provides comfort during use. The tester includes a visual indicator light that activates when the GFCI test is functioning correctly. With LED visual indicators, it helps determine the wiring conditions of an electrical outlet, showing if there is a hot and ground reversal, hot and neutral reversal, open hot, open neutral, open ground, or correct wiring. This compact and reliable tester is for ensuring safety and accuracy in electrical installations. Model Number: 2223-20