Klein Tools ET350 4-in-1 Digital Circuit Breaker Finder, Outlet Fault Detector, Non-Contact
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Highlights
- 4-IN-1: The digital circuit breaker finder finds the correct breaker, diagnoses outlet conditions (faults, voltage, GFCI trip time), performs non-contact voltage testing, and includes a work light
- LEARN MODE FOR EFFORTLESS PANEL READING: The receiver learns the panel with a single scan of all the breakers
- LOCATE MODE FOR FINDING A SINGLE BREAKER: Once the receiver has learned the panel, another scan in Locate mode finds the breaker you need
- OUTLET DIAGNOSTICS: The transmitter shows wiring faults, voltage and GFCI trip time
- NON-CONTACT VOLTAGE TESTING: Tests AC voltage in cables, cords, circuit breakers, and more while the bar graph indicates strength of signal being detected with audible/visual queues
Why You'll Love It
- Identifies specific circuit breakers quickly using a dedicated two-step scan process
- Checks receptacle wiring faults, live voltage readings, and GFCI trip times
- Detects AC voltage in cables and cords without direct contact
- Provides visual signal bar graphs alongside audible alerts for detection accuracy
- Illuminates dim electrical panels with a built-in work light
Pros
- +Combined 4-in-1 testing functionality
- +Audible and visual signal indicators
- +Integrated work light for dark panels
- +Measures GFCI trip duration
Cons
- -Requires a two-pass scan to find breakers
- -Listing does not state included battery type
Detailed Review
This 4-in-1 digital circuit breaker finder combines electrical panel tracing, receptacle diagnostics, and non-contact voltage detection into a single toolset. It is designed to take the guesswork out of locating the exact switch controlling an outlet or fixture, making it a practical diagnostic device for home maintenance and electrical projects.
Locating a breaker uses a straightforward two-step sequence. In Learn mode, the receiver scans across the entire panel once to register the baseline signals of every switch. Switching to Locate mode allows a second pass across the panel to pinpoint the specific breaker tied to the transmitter, helping you avoid accidental shutoffs of unrelated circuits.
Beyond panel tracing, the transmitter acts as an outlet diagnostic tool that reads wiring faults, detects voltage, and measures GFCI trip time. The unit also functions as a non-contact AC voltage tester for cables, cords, and breakers, using a signal strength bar graph with audible and visual cues, plus an integrated work light for dark work areas.
As a trade-off, finding a breaker requires completing both scanning passes rather than giving an instant single-touch reading. Additionally, the provided product details do not specify the power source, battery requirements, or overall tool dimensions.
Verdict: This multifunctional tester is a great choice for anyone who needs to map breakers, verify receptacle wiring, and check live wires with a single device. It suits DIYers and technicians looking for dependable breaker tracing and built-in outlet diagnostics.
Who Should Buy It
A great fit if you:
- Need to identify which breaker controls a specific wall outlet
- Want to test GFCI trip times and diagnose socket wiring faults
- Check for live AC voltage in cords and cables without touching wires
- Often work in dark electrical closets that require a built-in work light
Consider something else if you:
- Only need a basic single-function voltage pen
- Prefer a breaker locator that does not require a preliminary learning scan
FAQ
How does the breaker locating function work?
The receiver first scans across the panel in Learn mode to map the breakers. A second scan in Locate mode then identifies the exact breaker connected to the transmitter.
What outlet issues can the transmitter detect?
The transmitter diagnoses wiring faults, measures line voltage, and checks GFCI trip times.
Where can the non-contact voltage tester be used?
It tests for AC voltage in cables, cords, circuit breakers, and related components, showing signal strength via a bar graph with audible and visual alerts.
Product Details
| ASIN | B0H4S7LNM4 |
