Outlet Tester with GFCI

Dear customer. Most outlets "grip" the plug as if you are wedging it in between two metal contacts. The contact points are on either side of the outlet plug.

Gary, Ensure that it is all three lights that are illuminated and not that the light of one of the yellow LEDs are making it appear to light the one next to it. You either have a hot/grnd. reverse or a hot/neu reverse.

Commercial Electric OTG-102R Outlet Tester with GFCI on grey color is a new design rubber shell for solid and durable structure. Commercial Electric MS-102H Outlet Tester with GFCI on green color was an older design. But their functions are the same.

Commercial Electric GFCI Outlet Tester OTG-102R is powered by 110 Volt AC when the tester plugs into the outlet. There is no any batteries inside the tester.

Hi Mark, This question has been asked before, but I can answer this for you anyway: The GFCI test trip only works on grounded circuits. The tester did exactly what it is supposed to when you just plugged it in: it told you that there was an "open ground" (meaning that there isn't a ground). However, when testing for GFCI, it will not trip on an non-grounded circuit. From what I understand, the way that the tester works to check the GFCI function is that it leaks a tiny bit of electricity from the neutral to the ground ...and then measures that against the hot. Since there is no ground, there is no change to measure -and consequently, it doesn't trip the actual GFCI. As I hope you know, using a GFCI receptacle does not create an actual ground but it does provide ground fault protection. If you want the ultimate in home safety, I would suggest *also* adding an AFCI circuit breaker.

The GFCI test/trip is to break the circuit therefore in an open ground it will always show hot neutral reverse.

Yes, a GFCI outlet needs to have a working ground wire in order to working properly.

Yes, that is how all GFI testers I've owned have worked

Yes, Commercial Electric GFCI outlet tester OTG-102R will turn on the hot and neutral lights (correct wiring) when the GFCI outlet tester plugs into a good GFCI US wall outlet. It is around 110 AC voltage.

I wouldn't trust any device to tell me if a line is hot or not. I would make sure the circuit breaker is open.

This only works when it is plugged into a receptacle. If your GFCI is defective, it may read it as if the circuit breaker were off (if the GFCI is what's stopping current from coming to the receptacle). The problem is that as soon as you take the receptacle off the wires, the wires will still be hot. You really need a voltmeter. If you're worried about the cost, don't be silly it's a lot cheaper than electrician visiting. If you're really paranoid about it, get a flashlight, turn off the main breaker, and do it with all the power off. that's a little bit ridiculous, but still cheaper than hiring an electrician.

gawelker1@gmail.com (gary) I have had mine for a while. It will tell you if the circuit is hot plug it in and watch the light on the plug

Depends on the malfunction of your outlet. If it is broken in "test" position the tester will likely display nothing as there is no through connection.It if is in "on or reset" position it will light to show the wiring error. This will also be handy to check if you have properly installed the replacement. Make SURE to turn off the breaker that controls the outlet. You might want also purchase a non-contact voltage tester. I use the Klein Tools NCVT-1 available at HD, though there may be a more recent model. I find it indispensable. When you are SURE that you have turned off the correct breaker, plug in a known working item such as a table lamp to be SURE you're not getting current at the receptacle. Also use the Klein tester at a known good outlet to make sure you understand how it functions and that it is working. Then remove the plastic cover from the receptacle and use the voltage tester per its instructions to make sure there is no live current.