KLEIN TOOLS
Klein Tools ET310 AC Circuit Breaker Finder
Highlights
- ACCURATE CIRCUIT BREAKER IDENTIFICATION: Quickly locate the correct breaker with precision using our circuit breaker finder, ensuring efficient electrical troubleshooting
- TWO-PART SYSTEM: Consists of a Transmitter connected to the outlet/fixture and a Receiver to scan the panel, allowing for easy and accurate breaker identification
- CLEAR INDICATIONS: The Receiver provides visual and audible cues when the correct breaker is found, ensuring a hassle-free locating process
- WIDE COMPATIBILITY: Operates on 90-120V AC circuits, making it suitable for a variety of electrical systems and installations
- BUILT-IN GFCI TESTER: The Transmitter includes a GFCI outlet tester, enabling you to inspect wiring conditions and test GFCI devices for added safety
Why You'll Love It
- Quickly match standard wall outlets directly to their corresponding breaker in the electrical panel
- Two-part transmitter and receiver kit simplifies breaker mapping without extra help
- Dual visual and audible alerts confirm when you scan past the right breaker
- Operates across standard 90-120V AC residential and commercial electrical systems
- Integrated GFCI outlet tester checks socket wiring conditions and verifies safety trips
Pros
- +Combined breaker finder and GFCI tester
- +Clear visual and audible detection signals
- +Straightforward two-piece transmitter and receiver setup
- +Compatible with standard 90-120V AC circuits
Cons
- -Limited to 90-120V AC electrical circuits
- -Listing does not state receiver battery requirements
- -Listing omits accessories for bare-wire connections
Detailed Review
The Klein Tools ET310 AC Circuit Breaker Finder is a dedicated electrical troubleshooting tool designed to quickly identify the correct breaker controlling a specific outlet or fixture. It helps DIY homeowners and electricians pinpoint circuits without guessing or running back and forth between rooms.
The system uses a simple two-piece setup: you plug the transmitter into the target outlet and scan the breaker panel with the receiver. Both visual and audible cues confirm when the receiver passes the matching circuit breaker, giving you immediate feedback without extra equipment.
In addition to tracing breakers, the transmitter doubles as a built-in GFCI tester. This allows you to inspect standard socket wiring conditions and test the trip functions on GFCI receptacles to maintain proper electrical safety across 90-120V AC systems.
As for trade-offs, the unit is limited specifically to 90-120V AC electrical systems, so it cannot be used on higher-voltage circuits like 240V lines. The listing also does not mention whether the receiver requires a replaceable battery or includes adapters for bare wires and light sockets.
Verdict: The Klein Tools ET310 is a dependable choice for anyone needing to safely map out breaker panels and test GFCI outlets on standard 90-120V lines. It delivers clear feedback and combined testing functions in a straightforward two-part design.
Who Should Buy It
A great fit if you:
- Need to quickly identify which panel breaker controls a specific 120V outlet
- Want a tool that combines breaker tracing with GFCI receptacle testing
- Prefer clear visual and audible confirmations when working at the breaker box
Consider something else if you:
- Need to trace higher-voltage circuits outside the 90-120V AC range
- Require specialized accessories for tracing unpowered wires or direct bare cabling
FAQ
What voltage range does this tool support?
The ET310 operates on standard 90-120V AC electrical circuits.
How does the unit signal when the correct breaker is found?
The receiver provides both visual and audible indications when it detects the matching breaker on the panel.
Can this device test GFCI outlets?
Yes, the transmitter includes a built-in GFCI tester to inspect wiring conditions and test GFCI devices.
Product Details
| Brand | KLEIN TOOLS |
| ASIN | B07QNMCVWP |
