ZenEarth Grounding Outlet Tester for Earthing | Detects Wiring Problems in GFCI/AC Outlets | Easy-to-Use, Grounding Tester, Electrical Tester, Circuit Tester, Voltage Detector, for Electrical Safety

I love that this unit is super easy to use, with good functionality. Plug it in to the outlet, and the unit gives you the reading on the setup. There's an easy to read key on the device, to make it more user friendly.The unit seems well made and I'm happy with this purchase to check my grounds.Highly recommend for easy diagnosis of grounds.

I had an outlet that would sometimes charge my phone and sometimes not with various charging cords. I was trying to determine if it was the outlet or something else, so I picked this little tester up.This tester let me quickly see that the outlet was wired properly. It seems to be made well enough, and I'm happy to add it to my toolbox.

If you’re doing any plug electrical work, these are very handy. Not only to test the completed circuit but also while installing, to make sure the plug is aligned properly and screwed down tightly enough. I was confused on the RCD test button, but after researching, it’s the equivalent of testing your GFCI circuit. It throws a 30mA signal which automatically flips any US GFI as they’re designed at 5mA. All said, a nice little tester. Would recommend.