Review on 🔌 Gardner Bender GFI-3501 Ground Fault Receptacle Tester & Circuit Analyzer: Comprehensive 7-LED Visual Tests for GFCI, Standard & Extension Cords | 110-125V AC | Red by Andrew Schobinger

Not that it received much love and care but after a few uses the ground pin in the socket broke off. But I fished it out and it fit well, so I tried it and it worked. Then I added a drop of super glue and everything was fine. I wish they would make them audible with a non-irritating noise so you don't have to go back and see if you're testing the circuitry (don't tell me the radio is handy because it's small). It will also help you find it if you (well, I) leave it somewhere.