Review on 🔌 Southwire 40012S Receptacle Tester - Black, Tools & Equipment by John Akins

I bought this to find out which outlets in our house are ungrounded (quite a lot unfortunately). And this product seems to be working properly again, unfortunately because. That means I have a lot of open areas in our house wiring. Our electrician came and checked it out. So this product is good. It's small, it can fit in your pocket. It doesn't require batteries and the like. It's good. Just plug in, read the lights. Did.