Klein Tools ET450 Circuit Tracer Kit
KLEIN TOOLS

Klein Tools ET450 Circuit Tracer Kit

$60.00across 63 retailers
Lowest price
$205.99 at Amazon
Price seen May 20, 2025

Where to Buy

Newest price seen: Sep 25, 2025
RetailerPriceLast seenBuy
M
My Store
$60.00May 20, 2025, may have changedBuy Now
T
Toolshouse
$60.00May 20, 2025, may have changedBuy Now
H
HomElectrical Electrical Supply
$199.99Aug 1, 2022, may have changedBuy Now
L
Lewis Contractor Sales
$199.99May 20, 2025, may have changedBuy Now
T
The Tool Nut
$199.99Aug 1, 2022, may have changedBuy Now

Prices are collected from retailer listings; each row shows the date we last saw that price. Return and shipping terms are each store's standard policy from our retailer research (April 2026). Some products and categories have different terms, so check with the store before you buy.

Pros

  • •Accurately locates underground utilities, including electrical wires buried 3-4 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.
  • •Non-contact voltage sensing is as sensitive as professional Fluke pens on 120 VAC.
  • •Exceptional build quality with durable engineering and a well-designed 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 fine-tune 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.

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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%

Discussion

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