Klein Tools RT310 Outlet Tester, AFCI and GFCI Receptacle Tester for North American AC Electrical Outlets

Being able to test AFCI’s is nice. And I like how it has the other outlet testing features so I don’t have to carry around more testers.

I used this to test all of my house outlets. I found one that had reversed wiring, so it was definitely worth it. I was also able to independently test the GFCI outlet functions, and not just rely on the test buttons built into those outlets. I don't have any AFCI outlets so I can't try that test function.Tester is easy to handle and small enough to reach most outlets. Cord length is short but acceptable given the function of this tester. An extension cord may be needed for reaching outlets where there is not enough space to fit the tester, or where the tester display needs to be located far from the outlet for easier viewing of the status lights.The build quality is good. The tester display just has simple lights but they are easy to see and understand.The main downside is that the tester turns itself off too quickly. This frequently happened right when I plug it into an outlet. According to the instructions, the tester shouldn't be turned on while it is plugged into an outlet, so it's a little annoying and a slight waste of time every time it turns off to pull it back out, turn it on, and then push it back into an outlet. It would be great if there was a way to adjust the amount of time it can be idle before it turns itself off.

GFCI only testers are pretty cheap: just get the plug on kind with plain incandescent bulbs that show you bad wiring combos and have a "GFCI" test button. Those do fine. I got this for the AFCI testing ability, and I am impressed with it.I assumed that the tester "cheats" by synthesizing some kind of voltage signal on the wire that tricks the breaker into tripping, but this device has a component inside that generates an actual electrical arc. (There is a teardown video on YouTube that is great). If the breaker doesn't trip (e.g. you use it on an unprotected circuit) the arc will go on for a bit and heat up the component. The device has a temperature safety built in that will show you the arc generator is too hot and won't let you trigger it. This is a quality tool.Now, I did say for wiring state and GFCI the cheapo passive plug in ones are sufficient, but this tool also has a more comprehensive readout for the outlet state. For example, on one of my outlets, after the breaker tripped with the AFCI test, I got a read out saying something was wrong with the off state of the outlet. I have to now check to see what happened.

First things first... toss the crap batteries that it comes with... next use GOOD ones... now you have a real good product. Looks great. Works great. Pretty accurate for a cheap tester. Easy to use for novice... I am not a novice but wanted a quick reliable tool to test with... it's a much easier unit to carry around than my expensive ones...

Included batteries were dead on arrival. Other than that it is a great unit…

It worked well. I had a number of GFCI's to test for a bathroom project and this did the trick. Also, an added feature was the ability to test whether the outlets were wired correctly.

After, having another options, this Became the most important tool for my electrical projects .Reliable, Consistence … just one down side, is turns off, a little faster than, for me Coming and Going (in a Second Floor) working alone !And, Having- have been Made , outside of the States .

Great tool. Does exactly what it is supposed to. High quality and a fair price.