KLEIN TOOLS
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Klein Tools ET350 4-in-1 Digital Circuit Breaker Finder, Outlet Fault Detector, Non-Contact Voltage Tester, GFCI Tester, Learn and Locate Mode, Backlit LCD, LED Work Light
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Klein Tools ET350 4-in-1 Digital Circuit Breaker Finder, Outlet Fault Detector, Non-Contact Voltage Tester, GFCI Tester, Learn and Locate Mode, Backlit LCD, LED Work Light
Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day.
Klein Tools ET350 4-in-1 Digital Circuit Breaker Finder, Outlet Fault Detector, Non-Contact Voltage Tester, GFCI Tester, Learn and Locate Mode, Backlit LCD, LED Work Light
Item #: 233742001

Klein Tools ET350 4-in-1 Digital Circuit Breaker Finder, Outlet Fault Detector, Non-Contact Voltage Tester, GFCI Tester, Learn and Locate Mode,

Item #: 233742001

RWF 96967

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*All items will import from US

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Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day.
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What Stands Out

Breaker Location
Efficiently identifies circuit breakers, saving time during electrical troubleshooting. Accurate detection of the correct breaker ensures enhanced work efficiency and safety for electricians and DIY enthusiasts.
Voltage Testing
Integrated voltage tester detects AC voltage, providing essential measurements for safe electrical testing. This feature addresses user concerns by ensuring proper functionality, promoting safety during maintenance and repairs.
GFCI Testing
Built-in GFCI outlet tester enhances safety by ensuring proper ground fault protection. This function helps users prevent electrical hazards effectively, making it an essential tool for both professionals and homeowners.

Product Details

Shop Klein Tools ET350 4-in-1 Digital Circuit Breaker Finder, Outlet Fault Detector, Non-Contact Voltage Tester, GFCI Tester, Learn and Locate Mode, Backlit LCD, LED Work Light online at a best price in Rwanda. B0H8DPKCCJ
Power SourceBattery Powered
Style NameCircuit Breaker Finders
Color4-in-1 Circuit Breaker Finder
Item Weight8.32 ounces (235.87 grams)
Item Dimensions11.98 x 2.13 x 1.36 inches (30.4 x 5.4 x 3.5 cm)
Brand NameKLEIN TOOLS
ModelET350
Unit Count1 Count
UPC092644695230
Number of Items1
ManufacturerKlein Tools
Included Components4-in-1 Digital Circuit Breaker Finder
Part Number157410KLE
BrandKLEIN TOOLS
StyleCircuit Breaker Finders

Who Should Buy?

Suitable For
  • Homeowners

    Ideal for homeowners who want to safely identify circuit breakers and troubleshoot electrical issues in their homes.

  • DIY Enthusiasts

    Perfect for DIY enthusiasts needing a reliable tool for electrical projects, ensuring safety and precision in their work.

  • Electricians

    Essential for electricians looking to efficiently find breakers and test outlets, enhancing workflow and job site safety.

Not Suitable For
  • Advanced Professionals

    Not suitable for advanced professionals requiring high-end equipment with advanced features for complex electrical diagnostics.

Product Description

Klein Tools ET350 4-in-1 Digital Circuit Breaker Finder, Outlet Fault Detector, Non-Contact Voltage Tester, GFCI Tester, Learn and Locate Mode, Backlit LCD, LED Work Light

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the primary function of the Klein Tools ET310 AC Circuit Breaker Finder?

    Answer: The primary function of the Klein Tools ET310 is to accurately locate circuit breakers in a panel for specific outlets or electrical circuits. This device not only identifies the correct breaker but also provides an integrated GFCI outlet tester that verifies the safety and functionality of the outlet. It’s particularly useful for electricians and DIY enthusiasts who want to troubleshoot electrical issues or ensure their circuits are wired properly.
  • Question: How does the Klein ET310 perform a voltage test?

    Answer: The Klein ET310 performs a voltage test by using its built-in voltage detection capabilities. When the probe is placed near an electrical source, it detects the presence of voltage through electromagnetic fields. This allows users to quickly check whether a wire or electrical outlet is live, which is critical for ensuring safety before working on any electrical system. It can be essential when diagnosing electrical problems or ensuring that outlets are non-live before installations.
  • Question: Can the Klein ET310 detect GFCI outlets? How does this work?

    Answer: Yes, the Klein ET310 includes an integrated GFCI outlet tester, which can identify GFCI outlets and test their functionality. It does this by sending a small current through the outlet and monitoring for a ground fault. If the GFCI is functioning correctly, it will trip, indicating that it is providing the necessary protection against electrical shocks. This feature is particularly useful in ensuring that outlets in kitchens and bathrooms are functioning safely.
  • Question: Is the Klein ET310 suitable for home use, or is it designed only for professionals?

    Answer: The Klein ET310 is suitable for both home users and professionals. Homeowners can benefit from this device when undertaking DIY projects or routine electrical checks, while electricians appreciate its durability and precision in professional environments. Its user-friendly interface and clear indicators make it accessible for anyone needing to perform electrical diagnostics safely, making it a great tool for both casual users and seasoned experts.
  • Question: What kind of batteries does the Klein Tools ET310 use?

    Answer: The Klein Tools ET310 operates on standard 9V batteries, which are commonly used in many electronic devices. The battery compartment is easily accessible, allowing for quick replacements when necessary. Users should ensure that they have extra batteries on hand to keep the tester ready for use. This is especially convenient for professionals who may be using the tool frequently in various jobs.
  • Question: How can I interpret the readings provided by the Klein ET310?

    Answer: The Klein ET310 uses clear LED indicators to communicate its findings. For circuit breaker identification, it will illuminate specific lights based on the signal strength it detects. When testing voltage, a display shows if the voltage is within a safe range or if there is a potential issue. Users can quickly interpret these readings with the accompanying guide provided in the user manual, helping both professionals and DIYers to make informed electrical decisions.
  • Question: Does the Klein ET310 come with a user manual? Where can I find help with it?

    Answer: Yes, the Klein ET310 comes with a comprehensive user manual that provides detailed instructions on its operation, safety precautions, and troubleshooting tips. If you ever need additional help, Klein Tools also offers customer support resources online, including instructional videos and FAQs. This ensures that users can maximize the functionality of the tool with detailed insights into how to utilize its full capabilities.
  • Question: Is the Klein Tools ET310 portable? What are its dimensions?

    Answer: Yes, the Klein Tools ET310 is designed to be portable, making it easy to carry around to various job sites or projects. Its compact size allows it to fit comfortably in toolboxes or backpacks. Typically, it measures around 8.5 inches long and weighs less than a pound, making it a lightweight option for professionals who need reliable tools on the go.
  • Question: Can the Klein ET310 help in identifying dead outlets?

    Answer: Absolutely, the Klein ET310 can help in identifying dead outlets through its voltage testing functionality. When you plug the tester into an outlet, if it shows no voltage presence, it likely indicates that the outlet is dead or has been disconnected. This is especially useful when troubleshooting electrical issues in homes, ensuring that only functional outlets are utilized.
  • Question: Where can I buy Klein Tools ET310 AC Circuit Breaker Finder, Electric And Voltage Tester With Integrated GFCI Outlet Tester in Rwanda?

    Answer: You can buy the Klein Tools ET310 AC Circuit Breaker Finder, Electric And Voltage Tester With Integrated GFCI Outlet Tester at Ubuy. Ubuy offers a wide selection of Klein Tools products with convenient purchasing options and customer support. Simply visit their website to check availability and place your order.

KLEIN TOOLS Circuit Testers Editorial Review

Klein Tools ET310 AC Circuit Breaker Finder, Electric and Voltage Tester with Integrated GFCI Outlet Tester is a highly efficient tool designed to simplify the process of locating circuit breakers. Users appreciate its battery-powered functionality, which operates within a voltage range of 90-120V AC, making it compatible with most electrical circuits and outlets. The integrated GFCI outlet tester adds further convenience by checking wiring and protection, which many users found invaluable for home projects. While some reviewers noted that it might require a few tries to pinpoint the exact breaker, its ease of use and solid build quality make it a must-have for DIY enthusiasts and professionals alike.

Customer Reviews & Ratings

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Pros

  • Fast and accurate circuit breaker identification.
  • Integrated GFCI outlet tester enhances functionality.
  • Compatible with a wide range of electrical circuits.
  • Durable construction for long-term use.
  • Easy to operate with clear instructions.

Cons

  • May require multiple attempts for accurate breaker identification.

Platform Trust & Buyer Confidence

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4.2/5 9477 reviews
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Jasmin
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“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot
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Anke
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“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot
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Hazel
Verified buyer

“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

10 September 2026 · via Trustpilot
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Opaleye
Verified buyer

“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
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Adele
Verified buyer

“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
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Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

RWF 96967

Order now and get it around Saturday, October 10

QTY:

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Features & Benefits

  • Identify the correct circuit breaker accurately and quickly.
  • Integrated GFCI outlet tester for comprehensive functionality.
  • High-quality, professional-grade manufacture lasting over 160 years.
  • Clear visual and audible indications for ease of use.
  • Compact design allows for convenient storage.
  • Trusted American family-owned brand ensuring reliability.

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