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

Fácil de usar , buena calidad y muy útil

I used it to check all outlets

I inspect apartments and houses for NJ state housing and this tells me if a unit will fail for wiriing issues

Does not have a gfi button on the black version. Otherwise works well. Good buy.

Very useful. It actually tells you what the problem is.

The fine print is a little hard to read. I had to use my phone as a magnifying glass.

Not that it got the most love and care but after a few uses the ground prong snapped off in the outlet. But I fished it out and it fit snugly so I gave it a try and it worked. Then I added a dab of super glue and its been fine. Wish theyd make these audible with a non-annoying sound so you didnt need to walk back and look if testing a circuit (dont tell me a radio as the convenience is its small). That would also help find it when you (well, I) leave it somewhere.

Easy to use. Little uncomfortable to hold.

Excellent product, works perfectly!

The product is indispensable for diagnosing outlet issues. Throw one in your tool kit and youll always be ready to find the problem. The light readouts are printed on both sides so no matter how your plugged is installed you have an instant diagnosis.