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

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

This is a good idea, but the materials are probably poorly assembled or improperly assembled. I tested this for reverse polarity in both positions. I connected the tester to a NEMA 5-15 to NEMA 1-15 (non polarized) adapter so I could test the reversal of polarity in a safe manner. But to my dismay the red indicator never turned on once, in reversed and correct position. The red pilot light is totally dead. The indicator however, does properly identify open and correct ground. For what thats worth. I was suspicious of this tester as I heard a small jingle in the tester, but I paid no mind at first. I am glad I tested it to make sure it was in working order. I think Ill just pay a tiny bit extra for a non contact voltage tester. But not from GB. Update: received a replacement that also was not able to detect reversed polarity. Do not buy this product, it provides a false sense of security. But a non-contact voltage tester instead.

Font is too small. Other testers might be a better choice.

Easy to read and understand even for a novice with basic wiring knowledge. Works as well as similar testers that cost much more.

I have tried other products and did not get what I was looking for this product is very accurate

Must have product

I used a Gold Marker Pen to mark all of the Dark Orange dots on the label to a Gold Color. No way - for me - to quickly spot the difference between red dots and dark orange dots. Message to the manufacturer: please use “a light yellow color” instead of the dark orange color.

Easy to use and simple to understand

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.

Worked as intended - Shipped quickly