Klein Tools ET310 AC Circuit Breaker Finder, Electric and Voltage Tester with Integrated GFCI Outlet Tester

The Klein Tools ET310 combines an AC circuit breaker finder with electric and voltage testing capabilities and an integrated GFCI outlet tester. This multi-function tool is intended to help electricians and DIYers quickly locate circuit breakers, verify presence of voltage, and check GFCI outlets for proper operation. As a single device that covers several common diagnostic tasks, it reduces the need to carry separate testers. The ET310 is positioned as a convenient, time-saving tool for troubleshooting residential and light commercial electrical circuits.