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Amprobe BT-120 Circuit Breaker Tracer

4.4 4.4 out of 5 stars 1,109 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Magnetic Circuit Breakers by Amprobe

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BT-120: 90 - 120 V

Purchase options and add-ons

Brand Amprobe
Voltage 120 Volts
Product Dimensions 5.8"D x 10.4"W x 12.2"H
Circuit Breaker Type Standard
Number Of Poles 1

About this item

  • Identifies circuit breakers on energized 120V electrical systems
  • Receiver always finds the right breaker - automatic sensitivity adjustment removes ambiguity from the search by indicating the correct breaker with light and sound
  • The red LED indicator on the transmitter verifies that the receptacle is energized before receptacle or wiring maintenance
  • Compatible with standard 90 to 120V AC 50/60Hz breaker system
  • UL listed and complies with European Standard EN61010-1: 2001, Category II 120V

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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 12.2 x 10.4 x 5.8 inches; 5.64 ounces
  • Item model number ‏ : ‎ BT-120
  • Date First Available ‏ : ‎ February 14, 2006
  • Manufacturer ‏ : ‎ Amprobe
  • ASIN ‏ : ‎ B005G7SC0M
  • Country of Origin ‏ : ‎ China
  • Customer Reviews:
    4.4 4.4 out of 5 stars 1,109 ratings

Product Description

Amprobe products range from an extensive line of clamp meters and digital multimeters to industry-specific tools for residential/commercial electricians, HVAC/R technicians, utilities and industrial maintenance professionals. All Amprobe tools undergo rigorous testing to ensure full compliance with the latest IEC and CE safety regulations in Fluke Safety labs for quality and safety you can trust.


From the manufacturer

Amprobe, BT-120, circuit breaker tracer

BT-120 Circuit Breaker Tracer

Quality and safety, you can trust.

All Amprobe tools, including the Amprobe BT-120, are supported and designed by Fluke engineers with the customer in mind. Our products are built for safety, accuracy, reliability, and ruggedness to perform in a tough, professional environment for many years to come.

Amprobe BT-120 Circuit Breaker Tracer

Identify circuit breakers quickly and efficiently

The Amprobe breaker finder works on energized systems and is designed to quickly and easily identify breakers in residential and commercial environments. Automatic sensitivity adjustment removes ambiguity from the results of the tracing, and the receiver will clearly and quickly identify the breaker with sound and light. The BT-120 Circuit Breaker Tracer works on all electrical systems from 90 V to 120 V AC so you can meet the latest code requirements.

BT-250

Key Features

BT-120

BT-120

BT-120

BT-120

Automatic sensitivity adjustment

The receiver always finds the right breaker - automatic sensitivity adjustment removes ambiguity from the search by indicating single, correct breaker with light and sound.

Identifies circuit breaker location

Plug transmitter into an outlet and receiver will find the corresponding breaker. The red LED indicator on the transmitter verifies that the receptacle is energized before tracing, and when the LED is off it confirms that the correct breaker was switched off for that receptacle or wiring maintenance.

Perfect for office, residential and HVAC applications

Works on all electrical systems from 90 to 120 VAC, microprocessor controlled, durable and dependable.

Everything you need to get the job done!

The kit comes complete with a transmitter, receiver, 9V Battery (installed), and user manual.

AMPROBE

Amprobe builds Rugged, Reliable and Safe test and measurement tools

With over 500 products worldwide, Amprobe has become a leading manufacturer of trusted electrical test tools for industrial, commercial and residential applications. Our products range from an extensive line of clamp meters and digital multimeters to industry-specific tools for residential/commercial electricians, HVAC/R technicians, utilities and industrial maintenance professionals. All Amprobe tools are designed and supported by Fluke engineers.

Amprobe BT-120 Circuit Breaker Tracer Amprobe BT-250 Circuit Breaker Tester Amprobe ECB50A Circuit Breaker Finder Amprobe AT-6020 Advanced Wire Tracer Kit Amprobe AT-6030 Advanced Wire Tracer Kit Amprobe AT-7030 Advanced Wire Tracer Kit
Amprobe BT-120 Circuit Breaker Tracer Amprobe BT-250 Circuit Breaker Tester Amprobe ECB50A Circuit Breaker Finder Amprobe AT-6020 Advanced Wire Tracer Kit Amprobe AT-6030 Advanced Wire Tracer Kit Amprobe AT-7030 Advanced Wire Tracer Kit
Customer Reviews
4.4 out of 5 stars
1,109
4.4 out of 5 stars
1,109
3.1 out of 5 stars
14
4.0 out of 5 stars
47
4.0 out of 5 stars
47
3.1 out of 5 stars
6
Voltage range 90 V → 120 V 90 V → 250 V 100 V → 250 V 0 to 600 V AC/DC 0 to 600 V AC/DC with signal clamp up to 1000 V AC 9-300 V, DC to 400 Hz, with signal clamp up to 600 V AC
Quick scan and pinpoint breaker - - -
Locates energized and de-energized breakers and fuses Only energized Only energized Only energized
Traces energized and de-energized wires - - Traces energized wires
CAT Rating (Transmitter & Receiver) CAT II 120 V CAT II 250 V CAT III 150 V CAT III 600 V CAT III 600 V CAT IV 300 V (Transmitter) CAT IV 600 V (Receiver)
Non-contact voltage detection - - -
Signal clamp attachment - - - (optional)
Attachment for Hot Stick adapter - - -
Backlight - - -

What's in the box

  • BREAKER FINDER
  • Product guides and documents

    Looking for specific info?

    Customer reviews

    4.4 out of 5 stars
    4.4 out of 5
    1,109 global ratings

    Customers say

    Customers like the quality, size, value, and ease of use of the electric circuit testing device. They mention that it's well made, fits easily into exterior outlets, and is good value for money. Customers are also happy with readability, and performance. That said, opinions are mixed on accuracy, and button.

    AI-generated from the text of customer reviews

    167 customers mention142 positive25 negative

    Customers like the performance of the electric circuit testing device. They say it works well, identifies the circuits as it is, and works well at testing GFCI receptacles. The indicator is clear to read, and the device is reliable. Some say that it is the best socket tester out there. Overall, customers are satisfied with the performance and recommend it to others.

    "This circuit breaker tracer works perfectly but you MUST follow the instructions...." Read more

    "...Otherwise, the operation is flawless," Read more

    "...They are physically identical and operate exactly the same...." Read more

    "Just plug it in and check the chart right on the product. Works quickly and the option to tet pop your GFCI outlets is hand...." Read more

    132 customers mention117 positive15 negative

    Customers like the quality of the electric circuit testing device. They say it is very reliable, well-made, and solid. Some customers also say that it is easy to use and locates the correct circuit breaker every time. Overall, customers are satisfied with the quality and functionality of the product.

    "...Accuracy was 100%. It will also identify the circuit in a bundle. Just touch it to the ROMEX shielding of each line. However...." Read more

    "...Both tracers seem to work equally well at locating circuit breakers for me probably 99-percent of the time...." Read more

    "...It seems to be made of a pretty sturdy plastic. At least, it doesn't seem light or fragile or anything like that...." Read more

    "The BT-120 is a great tool. I am a general contractor and from time to time I have to cut power to lighting/power circuits...." Read more

    74 customers mention69 positive5 negative

    Customers find the electric circuit testing device easy to use. For example, they mention it's super easy to set up and it saves a lot of time. Customers also appreciate the ease of pulling it out of the plug.

    "...It's that easy!" Read more

    "I liked it was easy to use, it located the correct circuit breaker every time...." Read more

    "So easy to use!! If you buy a house, move into an apartment, or just don't have one, you should get one of these...." Read more

    "...You probably won't need this very often but it sure makes the job easier when you do. Recommended. This one seems accurate." Read more

    46 customers mention41 positive5 negative

    Customers like the value of the electric circuit testing device. They say it's good at the price, works to find problems, and saves them both time and money. They also say that it'll pay for itself in time saved the first time they use it.

    "...But for the price and value it's good, and it does it's job. Just a little finnicky...." Read more

    "...Price is just right too!" Read more

    "Completely worth the money! The GFCI feature is a nice bonus...." Read more

    "...This one has a reasonable price and seems to be fairly durable...." Read more

    19 customers mention15 positive4 negative

    Customers like the readability of the electric circuit testing device. They mention that the receptacle is easily readable, the lights are easy to read, and the red color makes it easy to see in a tool box.

    "...The lights are bright and clear, and easily readable regardless of how the receptacle is oriented...." Read more

    "...It works well at testing GFCI receptacles and the indicator is clear to read, with the diagram right on top. Highly recommended." Read more

    "...It has a good snug fit in sockets, red color makes it easy to see in tool box, etc. and it's rugged...." Read more

    "...Outlets places upside-down may prove difficult to read as the chart on the tester faces down in this situation...." Read more

    18 customers mention14 positive4 negative

    Customers like the size of the electric circuit testing device. They mention that it's convenient, small enough to fit in a small pocket, and solid. The plug sizes are standard, and the tool fits nicely in their hand.

    "...Plug sizes seem pretty standard to me. No issues with fitting it into any outlets, and no hotdog in a hallway situations either." Read more

    "...It has a good snug fit in sockets, red color makes it easy to see in tool box, etc. and it's rugged...." Read more

    "...This is a very solid feeling tool & large enough to use easily but not too large. The lights are easy to read...." Read more

    "it does seem to work, however the guide is small, and printed only one one side...." Read more

    24 customers mention10 positive14 negative

    Customers are mixed about the accuracy of the electric circuit testing device. Some mention that it is very accurate and easy to use, while others say that none of the readings were correct. The unique auto-calibration system ensures that the correct breaker is identified every time. However, some customers say that the calibration is a little tricky at first, and the unit repeatedly gave them false positive results.

    "...Both of these tested then failed to give proper test readings. There must be something that comes loose from impact...." Read more

    "...The unique auto-calibration system ensures that the correct breaker is identified every time without any false indications...." Read more

    "The calibration is a little tricky at first...." Read more

    "...Accuracy was 100%. It will also identify the circuit in a bundle. Just touch it to the ROMEX shielding of each line. However...." Read more

    14 customers mention5 positive9 negative

    Customers have mixed opinions about the button of the electric circuit testing device. Some mention that the test button works well and saves a lot of time, while others say that it is very sensitive and takes a very light touch to turn the device on.

    "...There is one drawback to this particular tester - the power switch is too sensitive and it takes a very light touch to turn it on...." Read more

    "...I highly recommend buying a case for it, as the button is very sensitive...." Read more

    "...Another gripe is the on/off switch on the detector is very sensitive - if you turn it off, don't touch or bump the switch or it'll turn back on..." Read more

    "...STUPIDLY sensitive on/off switch - just like everybody else says. Would be 5 stars if the switch had any resistance to accidental activation." Read more

    3 year review
    5 Stars
    3 year review
    After 3 years of using this professionally in the field. I find it to be an invaluable tool, originally I was discouraged by the product appearing to be the same as the harbor freight model. But that is water under the bridge after 3 years. I have traced countless circuits, and labeled countless panels using this tester. I highly recommend buying a case for it, as the button is very sensitive. I have never been led wrong using the product, it even identifies multi-wire branch circuits when you aren’t expecting multi wire circuits
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    Top reviews from the United States

    Reviewed in the United States on February 3, 2016
    Style: ST-102B GFCI Socket TesterVerified Purchase
    25 people found this helpful
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    Reviewed in the United States on February 26, 2015
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    85 people found this helpful
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    Reviewed in the United States on October 14, 2022
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    4 people found this helpful
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    Reviewed in the United States on December 29, 2020
    Style: BT-250 Breaker TracerVerified Purchase
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    Top reviews from other countries

    Translate all reviews to English
    Amazon Customer
    5.0 out of 5 stars Annoying sensitive on button, but....
    Reviewed in Canada on February 26, 2022
    Style: BT-120: 90 - 120 VVerified Purchase
    Phil
    5.0 out of 5 stars Must have for DIYers
    Reviewed in Canada on February 17, 2020
    Style: BT-250 Breaker TracerVerified Purchase
    Gabriel Pérez Jiménez
    5.0 out of 5 stars Excelente Producto para verificación de toma corrientes
    Reviewed in Mexico on November 25, 2019
    Style: ST-102B GFCI Socket TesterVerified Purchase
    Farhad Saboohi
    5.0 out of 5 stars Wiring with GFCI tester
    Reviewed in Canada on July 26, 2019
    Style: ST-102B GFCI Socket TesterVerified Purchase
    FrankyMoney
    2.0 out of 5 stars Not really
    Reviewed in Canada on February 18, 2023
    Style: BT-250 Breaker TracerVerified Purchase