Gardner Bender Plug-In Circuit Tester is a reliable receptacle tester and circuit analyzer designed to detect faulty wiring in any standard 110/125V AC grounded receptacle. It tests six circuit conditions including open neutral, open ground, open hot, hot/ground reverse, hot/neutral reverse, and correct wiring. The tester features easy-to-read signal indicators with yellow and red lights that clearly identify the wiring condition when plugged in. This compact and user-friendly tool is UL listed for safety and comes with a 1-year limited warranty. The tester is designed for 3-prong outlets and operates within a voltage range of 110V to 125V AC, making it an essential tool for electricians and DIY enthusiasts alike. Model Number: GRT-3500