Gardner Bender GRT-3500 Outlet Receptacle Tester & Circuit Analyzer, Indicates 5 Wiring Errors, Easy Read Chart, Comfort Grip, 120 VAC , Black

Always wanted one. Works great nice to have around the house

Works well to ensure my electrical is working correctly in my RV when I hook up to shore power - and prior to turning on any of my major appliances. My only criticism is that it is easy to hit the GFP button, which then trips breakers which I have to reset. But at least I know that feature works as well!

It does what it suppose to but you need to use it with a non contact voltage detector as a 2nd tester. All these type of testers does the same thing. Some better than others and this one does a great job but none detects if the plug is a reverse bootleg (reverse polarity with the ground connected to the hot line). It will show as correct but it really isnt. Thats where you need a non contact voltage detector. A reverse bootleg will have the entire receptical electrified/hot and using a voltage detector will beep when you get close to the receptical when it should only beep when you stick it to the hot slot. If this happens call an electrican to fix it or fix it yourself if you know what you are doing.

This tool has helped reinforce the fact that I have no clue what Im doing when it comes to electrical work! This is a must for DYIers like myself. I used this tool to confirm I royally screwed up the grounding for all the outlets in my house when I changed them to 3 prong outlets.

Very easy to use and quickly tell you if you have wired an outlet correctly. a must have tool for every tool box.

Does exactly what it is supposed to do, used it to check the rewire of my house after my little brother gave me a hand... Im glad I did.

Its small and a good thing to have when you need to know if electricity is running through your wires or not.

Easy to read

Works great when it can actually get plugged in. I upgraded an outlet to a tamper resistant (TR) GFCI outlet, and it wouldnt open the shutters. Ill have to try using it connected first to a 3 prong male/female extension cord that will actually go into the outlet. (Purchased Aug 2017)

Quick read on an electrical socket if ever in doubt. The LEDs (see product picture) tell the rest of the story. So easy to use!