Klein 4-in-1 Digital Circuit Breaker Finder (ET350)
Klein 4-in-1 Digital Circuit Breaker Finder (ET350)
Out of Stock - Available to Order - Usually ships in 15-20 days
Product Details
Product Details
Key Features
Overview
The Klein Tools 4-in-1 Digital Circuit Breaker Finder (ET350) combines four electrical troubleshooting tools in one kit. This is a circuit breaker finder designed for electricians, maintenance techs and home inspectors who need to identify the breaker for an outlet, check that outlet's wiring and verify voltage, without hauling three separate testers. The kit includes a transmitter, a receiver, a case and batteries.
Breaker finding works in two steps. Plug the transmitter into the outlet, then put the receiver in Learn Mode and scan the panel once; the receiver reads the panel in a single pass. Switch to Locate Mode and scan again, and it identifies the single breaker feeding that outlet. No trial-and-error flipping of breakers in an occupied building.
While it is plugged in, the transmitter does double duty as an outlet tester. It provides information on wiring faults, voltage and GFCI trip time, so you can diagnose the receptacle and identify its breaker in one trip.
The receiver adds non-contact voltage testing for AC voltage in cables, cords and circuit breakers, with audible and visual signal strength, and a built-in LED work light for dark panels, closets and crawlspaces. The digital display keeps readings clear.
Housings are PC and PC-ABS. The kit measures about 11-3/4" x 6-3/16" x 3-1/4" (29.8 x 15.7 x 8.3 cm) and weighs 1.1 lb (519 g). The transmitter docks onto the receiver for storage, and it runs on four AAA batteries, included. It conforms to UL 1436 and is certified to CSA C22.2 #160.
Who should buy it: residential and commercial electricians, facility maintenance crews, property managers and home inspectors who trace and test outlets regularly.
Find the Breaker on the First Try
Learn the panel in one scan, then locate the exact breaker feeding the outlet.
- Learn Mode reads the panel in a single scan
- Locate Mode finds a single breaker
- Digital display
Test the Outlet While You're There
The transmitter reports wiring faults, voltage and GFCI trip time at the receptacle.
- Wiring fault diagnosis
- Voltage reading
- GFCI trip time
Check for Voltage Without Contact
Non-contact voltage detection in the receiver gives audible and visual signal strength on cables, cords and breakers.
- Non-contact AC voltage detection
- Audible and visual signal strength
Light Up the Panel
The LED work light built into the receiver means one less thing to hold at a dark panel.
- LED work light in receiver
- Transmitter docks on receiver for storage
- (4) AAA batteries included
What's in the Box
- Transmitter
- Receiver
- Case
- Batteries ((4) AAA)
Key Specifications
| Functions | Breaker finder, outlet diagnostics, non-contact voltage, work light |
|---|---|
| Breaker Finder Modes | Learn and Locate |
| Outlet Diagnostics | Wiring faults, voltage, GFCI trip time |
| Display | Digital |
| Light | LED work light |
| Batteries | (4) AAA, included |
| Storage | Transmitter docks on receiver; case included |
| Housing | PC and PC-ABS |
| Standards | UL 1436; CSA C22.2 #160 |
| Dimensions (L x W x H) | 11-3/4" x 6-3/16" x 3-1/4" (29.8 x 15.7 x 8.3 cm) |
| Weight | 1.1 lb (519 g) |
Built For
Pro Tip
Run Learn Mode with the panel cover on and scan slowly across every breaker once. Giving the receiver a clean read of the whole panel up front is what makes Locate Mode point to a single breaker instead of a neighbor.
Tool Nut's Take
Four Testers, One Case
The Klein Tools 4-in-1 Digital Circuit Breaker Finder (ET350) finds the breaker, tests the outlet, checks for voltage and lights the panel from one kit.
- Who it's for: Electricians, maintenance techs and inspectors who trace and test outlets regularly.
- Why it stands out: Learn-then-Locate breaker finding plus outlet diagnostics with GFCI trip time in the transmitter.
- Worth knowing: Breaker finding relies on the transmitter plugged into a receptacle on the circuit, so it is built for outlet circuits.
Common Questions
- How does the Klein ET350 find a breaker? Plug the transmitter into the outlet, scan the panel in Learn Mode, then scan again in Locate Mode to identify the single breaker.
- Does it test GFCI outlets? The transmitter reports wiring faults, voltage and GFCI trip time.
- Does it include batteries? Yes. It uses four AAA batteries, which are included.
- Is a case included? Yes. The kit includes the transmitter, receiver, case and batteries.
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