KLEIN TOOLS
Klein Tools ET450 Circuit Tracer Kit
$219.99$263.99across 4 retailers
Lowest at any Popular Retailer
$239.99 at The Home DepotWhere to Buy
Prices last updated: April 29th 2026 1:09 pm
Pros
- •Accurately locates underground utilities, including electrical wires buried feet deep and even beneath concrete.
- •Effectively traces both powered and unpowered wires, including hot outlets to breaker panels and data cables for labeling.
- •Adjustable sensitivity allows precise identification of breakers on short conduit runs.
- •Noontact voltage sensing is as sensitive as professional Fluke pens on 120 VAC.
- •Exceptional build quality with durable engineering and a welesigned carrying case.
- •Enables safe underground planning to avoid costly excavation mistakes.
- •Offers significant cost savings by empowering DIY users to troubleshoot complex underground utility issues independently.
- •Intuitive buttons and screen display that require minimal manual consultation.
- •Useful adapter allows direct connection to standard outlets for easier testing.
- •Reliable signal strength, especially when other breakers are turned off during tracing.
Cons
- •Requires patience and learning curve to finune sensitivity and interpret signals correctly.
- •Battery compartments require a screwdriver to open, which can be inconvenient and risks lost or damaged screws.
- •Unusual battery installation design on the transmitter can cause confusion due to separated battery compartments.
- •Signal cancellation sometimes occurs when tracing underground wires if neutral or ground wires from other circuits aren’t identified first.
- •Audio output is somewhat low, and volume cannot be adjusted.
- •May take some time for beginners to fully master the operation.
Bottom Line
The Klein Tools ET450 Advanced Circuit Tracer Kit is a robust, reliable, and highly versatile tool built for professionals and serious DIYers who need to locate underground wires with precision. While it demands some patience to master, its accuracy at depths up to 4 feet, excellent build quality, and dual-function tracing capabilities make it a valuable investment that can save you significant time and money by avoiding excavation errors and electrician fees. If user-friendliness or battery access is a priority, be aware of the screwdriver-needed battery compartments and somewhat low audio volume. Overall, this is a top-tier circuit tracer well worth considering for complex electrical troubleshooting.
What Reviewers Are Saying
Praised
great tool23%
works well31%
helped trace wires15%
wise investment8%
very well designed8%
saves money on electricians8%
Criticized
screen not adjustable8%
audio tone is low8%
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