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

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!

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.

Works great. Price is not bad either. The only drawback is with the indicators lights. But it does not take a rocket scientist to figure it out.

Excellent product, works perfectly!

Does exactly what it is supposed to.

Straight forward to use. Does what its supposed to do.

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

I ordered one and it would not insert properly into my Tamper Resistant Receptacles. I received a replacement and the same thing was true. I took a small metal file and 30 seconds on both prongs to remove any sharp angles - it now works perfectly and inserts smoothly to all of my outlets. Overall I am happy with this tester at this price but you may need to remove burrs or angles on the spurs so the shutters on a TRR open correctly.

Just plug it in and you look at the lights and reference chart on the device. I wish the signal lights were a little brighter when used outdoors, but works well enough.

I used this tool to replace an outlet that went bad. It’s good for occasional use but I would want it in my tool bag everyday. It’s not really sturdy, but it does what it’s made to do. It’s accurate and relatively easy to use. Just make sure you have the manual out it you haven’t used one before.