Feature●The Accurate & Durable Outlet Tester from GroundLuxe is an essential tool for owners of grounding products.●This outlet tester allows users to quickly assess receptacle safety risks in the home, accurately checking that outlets are properly grounded and free of hidden power faults.●This ground tester provides reliable measurement for 120V 3-prong US outlets with easy-to-read outlet checker indicators to show you exactly whats happening.●Just plug it in to easily detect outlet wiring problems fast, with alerts to several common mis-wiring issues.●UL-certified outlet tester that is appropriate for testing outlets before using any grounding product.Description