Working on outlets or just want to make sure your home's wiring is safe? This Xrten socket tester is a handy little tool to have around. Just plug it into any standard 120V outlet – no batteries needed – and it gets to work. The clear LCD screen shows you the voltage and can test for ground faults. The indicator lights give you a quick read on the wiring condition (correct, open ground, open neutral, etc.). It can also help you find which circuit breaker in your panel controls that specific outlet, saving you time flipping switches. It works on GFCI/RCD protected outlets too, to confirm the safety device is functioning. Great for DIYers, homeowners, or handymen doing electrical repairs, installations, or just a safety check. Compact and easy to store in your toolbox. A simple, effective way to help prevent electrical hazards.