A flat-lay arrangement of the Klein Tools circuit breaker finder kit components, including the orange and black receiver wand, the GFCI outlet transmitter, a light socket adapter, a 3-prong ground adapter, alligator clip adapter, a 9V battery, and a black zippered hard case.
An infographic displaying the receiver and transmitter with text pointing out "Visual and audible indicators" on the receiver, "Tests GFCI devices" on the transmitter, and "Transmitter docks in receiver for storage."
An informational graphic showing the three included adapters: an alligator clip adapter, a 3-prong to 2-prong grounding adapter, and a light socket adapter, with text explaining their uses.
The orange and black ET310 receiver wand standing vertically next to the compact orange GFCI transmitter unit against a white background.
An angled view of the orange and black receiver wand lying flat, showcasing the power button, grip texture, and the sensing tip.
The receiver wand and transmitter displayed diagonally, showing the bottom port of the receiver and the prongs of the transmitter, indicating how they dock together.
A studio shot showing the three accessory adapters isolated: the white 3-prong ground adapter, the white light socket adapter, and the black alligator clip cable.
A close-up of a hand holding the orange receiver wand to scan a column of circuit breakers in a grey electrical panel, with the tip illuminated green.
A close-up of a hand plugging the orange transmitter unit into a standard white electrical outlet to trace the circuit.
A person wearing leather gloves holding the transmitter connected to the alligator clip adapter, which is attached to bare wires inside an open wall junction box.
The open black carrying case showing the circuit breaker finder kit components neatly organized inside a custom-fit black foam insert.
The closed black semi-hard carrying case featuring the Klein Tools logo in white and orange piping around the zipper.
Digital Circuit Breaker Finder with GFCI Outlet Tester (ET310) promotional video
Circuit Breaker Finder Accessory Kit promotional video
A flat-lay arrangement of the Klein Tools circuit breaker finder kit components, including the orange and black receiver wand, the GFCI outlet transmitter, a light socket adapter, a 3-prong ground adapter, alligator clip adapter, a 9V battery, and a black zippered hard case.
An infographic displaying the receiver and transmitter with text pointing out "Visual and audible indicators" on the receiver, "Tests GFCI devices" on the transmitter, and "Transmitter docks in receiver for storage."
An informational graphic showing the three included adapters: an alligator clip adapter, a 3-prong to 2-prong grounding adapter, and a light socket adapter, with text explaining their uses.
The orange and black ET310 receiver wand standing vertically next to the compact orange GFCI transmitter unit against a white background.
An angled view of the orange and black receiver wand lying flat, showcasing the power button, grip texture, and the sensing tip.
The receiver wand and transmitter displayed diagonally, showing the bottom port of the receiver and the prongs of the transmitter, indicating how they dock together.
A studio shot showing the three accessory adapters isolated: the white 3-prong ground adapter, the white light socket adapter, and the black alligator clip cable.
A close-up of a hand holding the orange receiver wand to scan a column of circuit breakers in a grey electrical panel, with the tip illuminated green.
A close-up of a hand plugging the orange transmitter unit into a standard white electrical outlet to trace the circuit.
A person wearing leather gloves holding the transmitter connected to the alligator clip adapter, which is attached to bare wires inside an open wall junction box.
The open black carrying case showing the circuit breaker finder kit components neatly organized inside a custom-fit black foam insert.
The closed black semi-hard carrying case featuring the Klein Tools logo in white and orange piping around the zipper.
Digital Circuit Breaker Finder with GFCI Outlet Tester (ET310) promotional video
Circuit Breaker Finder Accessory Kit promotional video
KLEIN TOOLS

Klein Tools ET310KIT Digital Circuit Breaker Finder Kit with GFCI Outlet Tester Light Socket Adapter Alligator Clips and Hard Case

Only 2 left
SKU: ET310KIT
$69.98

Description

Eliminate the Guesswork: The Complete Solution for Locating Circuit Breakers

Take the frustration out of electrical diagnostics with the Klein Tools ET310KIT Circuit Breaker Finder Kit. Designed for both residential and commercial applications, this professional-grade set allows you to quickly and accurately locate the correct circuit breaker in a panel without the need to interrupt power to the entire building. The system operates on standard 90-120V AC circuits and uses a two-part design: a transmitter that plugs into the electrical outlet or fixture, and a receiver that scans the panel to pinpoint the exact breaker controlling that circuit. This ensures you can work safely and efficiently, turning off only the specific circuit you need to service.

This kit goes beyond simple detection by including a comprehensive set of accessories to handle a variety of wiring scenarios. The transmitter doubles as a GFCI outlet tester, allowing you to inspect wiring conditions and verify safety compliance. With the included light socket adapter, you can easily find breakers for ceiling fixtures and chandeliers, while the alligator clip adapter enables connection to bare wires on non-terminated circuits. All components are protected and organized in a rugged, premium hard carrying case with a custom foam insert, making it an essential, grab-and-go addition to any electrician's or maintenance pro's toolkit.

Key Features

  • Precision Tracing: Quickly identifies the single breaker corresponding to a specific outlet or fixture on 90-120V AC circuits.
  • Dual Function Transmitter: Functions as both a signal generator for the receiver and a fully functional GFCI outlet tester.
  • Visual and Audio Indicators: The receiver provides clear audible and visual feedback when the correct breaker is located.
  • Lighting Circuit Adapter: Includes a screw-in light socket adapter to easily trace circuits for light fixtures and lamps.
  • Bare Wire Capability: Comes with an alligator clip adapter for connecting to exposed wires or non-standard terminals.
  • Versatile Connectivity: Includes a 3-prong to 2-prong grounding adapter for use with older outlets.
  • Jobsite Durability: Rated for a 6.6-foot drop protection and CAT II 120V safety standards.
  • Organized Storage: All components nest securely in a durable hard carrying case with a fitted foam insert.

What's Included

  • (1) ET310 Digital Circuit Breaker Finder Receiver
  • (1) GFCI Outlet Tester / Transmitter
  • (1) Light Socket Adapter
  • (1) 3-Prong to 2-Prong Grounding Adapter
  • (1) Alligator Clip Adapter
  • (1) 9V Battery
  • (1) Premium Hard Carrying Case

Specifications

Application Locate Circuit Breakers, Test GFCI Devices
Voltage 90 - 120V AC
Safety Rating CAT II 120V
Drop Protection 6.6 ft
Overall Length 10.96 in
Overall Height 2.16 in
Overall Width 1.39 in
Material PC-ABS Housing and Electronics
Battery 1 x 9V
Weight 1.27 lb

Pro-Tip: To ensure the highest accuracy, scan the breaker panel twice. The first pass allows the microprocessor to learn the panel's signal strength, while the second pass will pinpoint the exact breaker with a solid green light and a distinct tone.