Features:

  • Detects the most common wiring problems in standard and GFCI receptacles
  • Works on GFI outlets and confirms operation of the ground fault protective device
  • Conforms to UL Std 1436, Certified to CSA Std C22.2 #160
  • Built to withstand a 6.6-foot (2m) drop
  • Operating temp: 32-degrees F to 140-degrees F (0-degrees C to 40-degrees C)
  • Nominal Voltage: 110/125V AC at 50/60Hz in 3-wire outlet
Tiny and Effective

I can’t speak to the concerns of longevity, re other reviews, but for what we needed this tester is perfect. We purchased it to check the outlets in our new home after the seller reportedly fixed and grounded the outlets. Not so. We were able to see what work had not been completed and request further electric grounding from the seller. It’s tiny, but easy enough to read and did the job perfectly for us.

Another great Klein product

Works great for testing receptacles. Works REALLY great for finding an open neutral if your house is daisy chained and you lost part of the circuit. Stick the tester in a socket, jiggle it around and if the power flickers on and off downstream then that receptacle is your problem. Easy peasy!

Great Value

I own tons of Klein products. I worked as an Industrial electrician, and while they aren't always the best, they have always been a quality item. This was purchased for my wife while I am deployed overseas. It has been easy to use and given consistent reading while being very reasonably priced.

Klein Tools RT210 GFCI Receptacle Tester

Item arrived on time, and not damaged. Worked as expected. Plugged it into an outlet wired correctly, and it provided the correct output. Plugged it into an outlet that was (knowingly) wired incorrectly, and it identified the problem. Also tested tripping a GFCI outlet, and that too worked.

Works like a charm

Works like a charm. I had one of these years ago and lost it. Glad to have one back in my electrical tool bag. Great buy and a great brand tool. If you don't have one get one. It'll save you that headache when you have wiring issues

As nice or nicer than the old Ideal yellow one.

Got this because I lost my old Ideal yellow tester and could not find one like it again. Since I’ve had great luck with Klein, I tried this, and I’m happy. It does it’s job well, lights are bright, and you don’t need to worry about it dropping occasionally. The newer Ideal models break easily, this one doesn’t. Only complaint is the shape makes it a bit of a chore when you have to test something behind those really old NEMA 3-R plates, but that’s a very minor complaint.

Cover the button to protect from accidental presses

Great testing tool. Not sure if i can use the GFCI test button on regular switches. I have those old fuse boxes and not all sockets are GFCI (only in the kitchen usually). It would be nice to cover the button from accidental press if it will blow the fuse. I didn't try it on my regular socket but it worked on GFCI.

Wonderful instrument for a small price!

This is a splendid little instrument. Nothing not to like. Well made, including the legend on the instrument- not a cheap paper decal. Includes a very well made plasticised fold out instruction booklet. Cut open the blister pack by cutting the margins only with a good pair of scissors, to avoid damaging the instruction booklet. This device is great for testing downstream gfci circuits for proper installation and operation. Highly recommended! +++!!!!

Cheap insurance for music gear

I'm a musician so I bought this to test outlets at music venues before I plug in my gear. I've used it regularly for several months now and it works well. Saved me a couple times from improperly wired outlets. If you're a musician who plays electric gear and don't feel like buying it twice, you need this.

Klein Tools GFCI Receptacle Tester - Model RT210 - Visual LED voltage indicator bar graph - Works well for our needs

This is exactly what we needed! Our son is in an electrician's apprenticeship program, and this type of device was listed in a top 15 list of good electrician tools that we read. We purchased it for a Christmas gift, and he was super excited to get it. So far he has canvased our house outlets and already found two that are not functioning properly... so now i have to go buy a couple replacement outlets to make sure that ours are properly functioning. This tool went right into his canvas wok bag! Excellent

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