Aicevoos D2S Receptacle GFCI Socket Outlet Tester with LCD Display, for Standard 3-Wire 120V Electrical Outlets Tester

I wanted this Aicevoos DS2 3-Wire 120V Outlet Tester because I had an APC (American Power Conversion) home surge protector showing a red light for a building wiring fault. I did some searches and found some information that some of these units have been known to show false positives for wiring faults. I moved the surge protector to a different outlet that wasn’t causing the red light. When I received this Aicevoos DS2 3-Wire 120V Outlet Tester, I tested the ‘offending’ outlet, and it showed as CORRECT. I proceeded to test the rest of the outlets in my home. Most came up as CORRECT, but an unused one came up as LIVE NEUTRAL REVERSE for both sockets. And a heavily-used one came up as MISSING GROUND for both sockets. I immediately unplugged the heavily-used cords, and won’t use that outlet until my electrician addresses the issues. I didn’t try any other functions on this tester, just used it by plugging it into sockets. Testing took a second or two on each plug, and then the ‘plain english’ output in all-caps. I’m really glad I ordered this tester. An electrician found and resolved a serious issue with an outlet in my finished basement a few years after I moved in. It will be good to get these others taken care of. I’ve assisted an electrician relative on wiring an addition to his home, not doing any of the real electrical work, but observing. I’m not an expert, so this Aicevoos DS2 3-Wire 120V Outlet Tester was perfect for me. I’ll also have my electrician check out the outlet that threw an error on my surge protector, but checked out CORRECT with this tester. This outlet tester seemed to work well, and I have no reason not to recommend it.