Klein Tools ET450 Advanced Circuit Breaker Finder and Wire Tracer Kit for Energized and Non-Energized Breakers, Fuses, and Wires
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Availability:
In Stock.
Arrives
Tuesday, Jul 29
Features
- RELIABLE CIRCUIT TRACING: The Advanced Circuit Tracer Kit ensures dependable tracing of energized or non-energized breakers, fuses, and wires for accurate electrical identification
- ADJUSTABLE SENSITIVITY: Easily modify receiver sensitivity to detect transmitted signals through various materials like drywall, cement block, or underground, enhancing tracing capabilities
- VERSATILE APPLICATIONS: Trace wires, conduit, pipes, or isolate a single wire within a bundle, making it suitable for a wide range of electrical tracing tasks
- SIGNAL STRENGTH INDICATION: Audible beep and visual indicators on the receiver provide clear signal strength feedback, aiding in precise wire identification
- ILLUMINATION AND NCV FUNCTION: Receiver includes a built-in flashlight for low-light areas and a non-contact voltage (NCV) function to test wire energization, enhancing safety and visibility during tracing
- AC/DC VOLTAGE INDICATORS: The transmitter features external voltage indicators (12V, 48V, 120V, 240V, and 480V), allowing for easy identification of different voltage levels during tracing
- COMPLETE PACKAGE: The kit includes a transmitter, receiver, blade and ground prongs, alligator clips, 3-foot and 20-foot lead adapters, AC plug leads, batteries, instructions, and a sturdy carrying case for convenient storage and portability
Description
The Klein Tools ET450 Advanced Circuit Tracer Kit is a professional tracer for energized and non-energized breakers, fuses, and wires. When the Transmitter is connected to a circuit, the Receivers sensitivity can easily be adjusted to detect the transmitted signal on breakers, fuses, and wire through drywall, cement block, and underground. Kit comes with transmitter, receiver, blade and ground prongs, alligator clips, 3-Foot and 20-Foot lead adapters, AC plug leads, instructions, all required batteries, and a hard carrying case with handle for convenient transportation and storage.
Brand: KLEIN TOOLS
Power Source: Battery Powered
Style: Circuit Testers
Color: Multi
Item Weight: 2 Pounds
Is Discontinued By Manufacturer : No
Product Dimensions : 16.12 x 12.75 x 4 inches; 2 Pounds
Item model number : ET450
Batteries : 10 AA batteries required. (included)
Date First Available : April 7, 2022
Manufacturer : Klein Tools
Country of Origin : China
Best Sellers Rank: #6,240 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #11 in Circuit Testers
#11 in Circuit Testers:
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Jul 29
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Pattern Name: Kit
Worked great - used it to trace a hot outlet back to the breaker panel, and had to turn the sensitivity down on the probe to narrow down the exact breaker, so it had more than enough signal on a short (maybe 75 foot) run in conduit. Tried it on unpowered data wires to label the other end of the correct cable. Worked great so far, but haven't tried using to trace any power wiring underground yet. Very nice to have one tool that works for both finding un-powered data/signal/phone pairs, as well as plugging it right into powered outlets to find a breaker before even starting. The non-contact voltage sensing in the probe seems to work about as sensitive as my much smaller Fluke Volt-Alert pens do, but I've only tested this Klein probe on 120 VAC, not any lower voltage DC cabling yet where the Fluke pens still work. Very nice case to keep it all together and un-damaged in the tool bag or box, and I really like that they provided specific holders to put the batteries into, so you don't have to store them in the device or leave them rolling around the box, so they won't run down and leak if this doesn't get put into use for some period of time. I didn't need a lot of time in the manual, just checking over features and basic usage, and the buttons and screen display are fairly intuitive. You won't need to refer to the manual much again, but it's nice that it has a place inside the box for other users. If you're tracing underground wires, you only need to pay attention to finding a neutral or ground wire that's on a different circuit somewhere else before starting. If not, the signal path going both directions on a pair that are right next to each other are equal and opposite, and tend to cancel the signal strength enough that you may not find it. No problem with simple breaker locations though, and you can use the provided adapter to just plug the transmitter right into a standard outlet. On the down side, I really dislike that they required a screwdriver to open the battery covers. That's just lazy design, and more prone to breakage, stripping, or screw loss than a decent spring clip just built right into the battery cover. And they made a VERY strange decision on the larger transmit unit, where all but two of the batteries snap into the removable battery holder that you screw back down onto the device - but then 2 more batteries need to be snapped into slots back inside the unit before you put the battery cover back on. Very uncommon, and easily missed by someone who will come back and tell you it doesn't work, and you need to remember to ask if they had 2 extra batteries left over after putting them all in. If so, reopen the transmitter, and look for the extra 2 battery slots NOT near any of the rest of the batteries. All in all, a decent unit for the price, and it does double duty on hot and unpowered wires. I've paid more for just single use units. Definitely something worth adding to your tool set, that you'll find many uses for.
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Reviewed in the United States on June 3, 2023 by Bruce Warrington
Pattern Name: Kit
So far product works fantastic, really like the sensitivity settings as finding branch circuit breakers has been a breeze. The receiver has a back lit screen which makes it easy to see in the dark. Super simple to use and is accurate every single time. I used this to replace my ideal one as the latter’s sensitivity was either too much or too little. Only thing I do miss from the ideal is the continuity tester and that it does 600V compared to the Klein. This unit is less expensive so I’m fine with those features not being included.
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Reviewed in the United States on February 3, 2025 by Jelker
Pattern Name: Kit
Great purchase. I used it to track broken irrigation wires, the power, and common wire were broken in several places after my lawn client had a pool built. It worked perfectly even with the wires being +12” under ground. I found the break in the wires within 5 minutes. Would definitely buy again or recommend if you need to trace irrigation wires, broken or unbroken. The carrying case is also nice and durable, and it came with batteries for both devices.
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Reviewed in the United States on June 17, 2025 by Andre
Pattern Name: Kit
This is a great tool!! intuitive setup and use. sensitivity adjustments work well for determining general direction and pinpointing location. the only thing that is different is that some on the batteries in the transmitter are mounted in the case and some are in the cover, which is less than obvious. read the instruction completely to determine how many batteries are needed.
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Reviewed in the United States on May 21, 2025 by Wayne Soucie
Pattern Name: Kit
Works as expected and easy to use.
Reviewed in the United States on July 13, 2025 by Gump
Pattern Name: Kit
Works extremely well at finding lost wires, however it isn't perfect, sometimes picking up stray signals. Still, couldn't have found my problem without it!
Reviewed in the United States on March 20, 2025 by Jeff Weiss
Pattern Name: Kit
This is a way cool tool for chasing electrical issues. This actually replaces several tools I used to have to gather up before working on electrical issues. The two features I use the most are the ability to tone on live and dead circuits and the proximity voltage detector. Highly recommend for troubleshooting electical issues.
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Reviewed in the United States on June 30, 2025 by Tim
Pattern Name: Kit
This is well built, durable and worth every penny. Connections are solid and well thought out. It is a Klein so I expected it to be good BUT, for the price point, better then I expected. Attached pictures are of a valve, you really have to look close, that was buried under 12 inches of rock and 18 inches of very compacted soil root and rock. The valve was well over 500 ft away from the controller. I didnt walk right to it, took a lot of effort but found it. Valve is over 25 years old and the person who did the landscape needs a good talking too!!!!
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Reviewed in the United States on June 15, 2025 by Derek C. Derek C.