Extech CB10 AC Circuit Breaker Finder and Receptacle Tester - Professional Grade GFCI Outlet Tester for Home & Industrial Use - Pinpoint Breakers and Fuses - Includes 9V Battery and LED Indicators

Breaker Hunting Made Easy: Stop playing the guessing game at your electrical panel. The CB10 lets you pinpoint the exact breaker for any 110V to 125V outlet without turning off the whole house or shouting across the room to a partner.
Dual Function Professional Tool: Why carry two devices when one does it all? This handheld pro kit combines a precision breaker locator with a high-accuracy receptacle tester, making it a must-have for home renovations and electrical repairs.
Master Your Sensitivity: Unlike basic automatic models, our adjustable sensitivity dial gives you total control. Fine-tune the receiver to filter out ghost signals and identify the correct fuse even in crowded, complex electrical panels.
Instant Wiring Diagnostics: The GFCI transmitter doubles as an outlet tester with clear LED indicators. It instantly identifies five common wiring faults like open grounds or reversed polarity, ensuring your home is safe and up to code.
Rugged and Smart Design: Built for the job site, the receiver and transmitter snap together for compact storage in your toolbox. With audible beeps and bright visual alerts, you will never miss a signal even in loud or dimly lit basements.