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Customer Top Picks

Klein ET200 Electronic Voltage Tester With Worklight
$36.96
5 people liked this
Gardner Bender GRT-3500 Standard Outlet Tester
$9.21
3 people liked this
Lisle 28640 The Ultimate Circuit Tester Kit
$37.93
0 people liked this
Fluke 1LAC-A-II Low Voltage Detector
$29.96
2 people liked this

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About Circuit Testers

A circuit tester is a device used to verify that an AC wall outlet is wired properly. The tester itself is small device which looks like the "plug in" end of a power cord, with several lights on it rather than an attached cord. Be sure to get one today, and avoid the unpleasant mistake of finding out a plug is hot, when you thought it wasn't. It could even save your life!