AC Circuit Breaker Finder with Visual and Audible Alerts, 90–120V GFCI Outlet Tester – Klein Tools ET310
AC Circuit Breaker Finder with Visual and Audible Alerts, 90–120V GFCI Outlet Tester – Klein Tools ET310
This AC circuit breaker finder uses a two-part transmitter and receiver to identify the breaker connected to an outlet or fixture without relying on guesswork. Plug in the transmitter, then scan the electrical panel with the receiver; clear visual and audible indications identify the corresponding breaker for faster troubleshooting on 90–120V AC circuits.
The transmitter also works as a GFCI outlet tester, allowing you to inspect outlet wiring conditions and test GFCI devices with the same compact kit. Its three-pin plug fits North American grounded outlets, and the transmitter docks inside the receiver so both parts stay together between jobs. The ET310 includes the transmitter, receiver, user manual, and a 9V battery for the receiver.
Specifications
- Brand: Klein Tools
- Model: ET310
- System: Transmitter and receiver
- Operating range: 90–120V AC
- Indication: Visual and audible
- Integrated function: GFCI outlet tester
- Connection: Three-pin grounded outlet plug
- Power: Battery powered receiver
- Included: Transmitter, receiver, manual and 9V battery
- Dimensions: 10.96 × 2.16 × 1.39 in
- Item weight: 7.2 oz
Frequently Asked Questions
How does the ET310 locate a circuit breaker?
Connect the transmitter to the outlet or fixture, then scan the panel with the receiver until its visual and audible signals identify the matching breaker.
What circuit voltage does this finder support?
The Klein Tools ET310 operates on 90–120V AC circuits.
Can the transmitter test GFCI outlets?
Yes. The transmitter includes a GFCI outlet tester for checking wiring conditions and testing GFCI devices.
Does the kit include a battery?
Yes. A 9V battery for the receiver is included with the transmitter, receiver, and user manual.