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Klein Tools ET310KIT

Klein Tools ET310KIT circuit breaker finder kit laid out with its carrying case, on a white background

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Klein Tools ET310KIT

Use:
Identifies the breaker corresponding to an outlet or fixture on 90 to 120 V AC circuits
How it works:
The transmitter attaches to the outlet or fixture while the receiver scans the panel, with clear indicators when the correct breaker is found
GFCI testing:
The transmitter doubles as a GFCI outlet tester and shows wiring condition at the outlet

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Package details

Model: ET310KIT

ET310KIT kit as specified

Condition:
Confirm new or reconditioned on the listing
Quantity:
Confirm package quantity on the listing
Included essentials:
Light socket adapter, alligator clips adapter for bare wires, and a 3-prong to 2-prong adapter (69411 kit)

Important limit: Limited to 90 to 120 V AC circuits, per Klein's spec; not for 240 V panels

Confirm condition, quantity and included accessories on the retailer’s listing.

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Specifications checked November 5, 2026. Full product details

Weight
1.27 lb (0.6 kg)
In the box

In the box

Light socket adapter, alligator clips adapter for bare wires, and a 3-prong to 2-prong adapter (69411 kit)

Manufacturer specifications

Klein Tools ET310KIT Circuit Breaker Finder Kit

The ET310 circuit breaker finder with GFCI outlet tester bundled with the 69411 accessory kit and a foam-lined hard carrying case.

Which version should you buy?

Recorded product: ET310KIT kit as specified.

Related models and generations

These are different products. Check their specifications separately.

  • ET310KIT Model: ET310KIT

    The product as specified on Klein's product page.

Purchase links appear where the exact offer is verified. Confirm the named model, quantity and accessories before ordering.

Why people pick it

  • Bundles the 69411 adapters, so it covers light fixtures and bare wires out of the box, not just outlets
  • Hard case with foam insert keeps transmitter, receiver and adapters organized
  • Doubles as a GFCI and wiring-condition tester at the outlet, per Klein's page

Know before you buy

  • Limited to 90 to 120 V AC circuits, per Klein's spec; not for 240 V panels
  • CAT II 120V rating only
  • Costs more than the bare ET310; buyers who only test standard outlets need fewer pieces

Full specifications

UseIdentifies the breaker corresponding to an outlet or fixture on 90 to 120 V AC circuits
How it worksThe transmitter attaches to the outlet or fixture while the receiver scans the panel, with clear indicators when the correct breaker is found
GFCI testingThe transmitter doubles as a GFCI outlet tester and shows wiring condition at the outlet
Adapters includedLight socket adapter, alligator clips adapter for bare wires, and a 3-prong to 2-prong adapter (69411 kit)
Drop protection6.6 ft (2 m)
Safety standardCAT II 120V
For use withNorth-American-style grounded electrical outlets
Batteries1 x 9V for the receiver, included
CasePremium hard carrying case with dense foam insert; all components nest in it
Case size10.96 x 1.39 x 2.16 in (27.8 x 3.5 x 5.5 cm)
Weight1.27 lb (0.6 kg)
IncludedET310 transmitter and receiver, 69411 accessory kit, user manual, 9V battery, carrying case
UPC092644694929

From manufacturer documentation, checked November 5, 2026. Spotted an error? Tell us.

Alternatives to consider

Klein Tools ET350 4-in-1 Digital Circuit Breaker Finder

Klein Tools ET350

Specifications & conditions
Safety rating
Conforms to UL 1436; certified to CSA C22.2 No. 160 (CAT rating is not marked on this tester)

A plug-in digital circuit breaker finder that also diagnoses outlet wiring, tests GFCI devices, detects voltage without contact and carries a built-in LED work light.

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  • Beginners
  • Pros
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