Klein Tools 80077 Voltage Tester Kit with Electronic AC/DC Voltage Tester, GFCI Outlet Tester and Non-Contact Voltage Tester Pen, 3-Piece, Green

This circuit tester works easily and accurately. It also allows you to test a GFCI outlet.

One of the few devices that can tell you if everything is working correctly.

Works as described!!!

I keep it in the rv so I can check a plug before plugging in. Has already saved my system from one mis-wired plug. Works great, easy to read.

Works exactly how it should!

If you dabble in electrical work even just a little, this is a must-have product!

Excellent feature. Tells you whats wrong before opening. Great for inspecting wirirng. Saves a lot of time. Very handy.

Klein quality works great.

This outlet tester is simple and easy to read. It is a staple whenever I do electric work or help a friend or family member with an electrical issue. It has never steered me wrong.

Works just fine but the lights are very dim. Its hard to see in bright light.