KLEIN TOOLS Digital Circuit Breaker Finder

Klien Tools digital circuit breaker finders are designed to quickly and accurately locate the correct circuit breaker in a panel corresponding to the circuit of any 120V standard electric outlet.

StyleModelPrice (ex. VAT)


  • These circuit breaker finders come with integrated GFCI testers consisting of a transmitter to inspect the wiring condition at the electrical outlet and a receiver that scans the breakers in the circuit panel.
  • The receiver also powers off automatically after approximately three minutes when not in use to save battery life.
  • The transmitter incorporates a three-pin plug for connecting to grounded electrical outlets, while the receiver uses one 9V battery to aid the operation.
  • The brand's ET300 circuit breaker finder includes a flashing arrow for easy identification and have a microprocessor-controlled operation for accurate readings.
  • It is equipped with a strong transmitter that can reach distances of up to 1000 feet (305 m).

Frequently Asked Questions

How is the presence of a circuit breaker indicated?

The receiver indicates the presence of the correct circuit breaker with a bright green arrow followed by a loud beep.

How to replace a battery in the unit?

  • When the power-on indicator blinks, the battery must be replaced.
  • Open the battery compartment door by unscrewing the locking screw.
  • Remove the exhausted battery and replace it with a fresh one. Now close the battery door and re-fasten the locking screw.

We are here to help!

Looking for a part not listed here?