10 Best Circuit Breaker Finders 2022[Our Top Picks]

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A circuit breaker finder is a device that helps people figure out the location of their circuit breakers to avoid tripping them. Circuit breakers are usually found near the electrical panel, which makes them difficult to find.

Thankfully, there’s now an easier way. You won’t have to worry about not finding a faulty breaker again! Instead, it’s easy to test it out before leaving the house or heading into an unknown building.

Using this device will also help you avoid costly repairs by alerting you to problems before they become too serious. Most circuit breaker finders are easy to use and will locate any faulty breakers in your house quickly. Furthermore, it’s a must-have for anyone who wants to keep their family safe at all times.

Today, I’ll share a top 10 list of the best circuit breaker finders and share which things you should consider before buying one.

So let’s get started.

Types of Circuit Breaker Finders

As of right now, there are three types of circuit breaker finders: the mechanical type, the digital type, and the ultrasonic type.

  • Mechanical type: This is the oldest type of breaker finder. To detect a breaker in the circuit, you must manually go around your home or wherever you are and feel for it. It is time-consuming and requires a lot of effort, which can be dangerous if you do not know what you are doing. It is a device that usually has a wood handle and a metal antenna attached to it. It might be cheaper than other types.
  • Digital Type: This type is a more high-tech version of the mechanical one. It uses an electric antenna on a wire that has to be wrapped around a specific area to detect a breaker. It’s more accurate than mechanical types, but it requires batteries, and sometimes they die quickly. Also, it is expensive to keep buying them.
  • Ultrasonic Type: This type does not require manual labor since you have to stand over it to find the circuit breaker. It is battery-operated and Bluetooth or app compatible, making it more high-tech than any other (including digital). So check out this one if you’re looking for the most high-tech circuit breaker finder that’s also very accurate.

Our Top Picks

  • Klein Tools ET310 AC

    • Material: PC & PC-ABS
    • Operates: 90-120VAC
    • GFCI Tester: Yes
    • Weight: 12 Ounces
    • Voltage: 120
    • Certification: No
    • Warranty: 1
  • Best Value

    Ideal Industries 61-534

    • Material: Plastic
    • Operates: 80-300VAC
    • GFCI Tester: Yes
    • Weight: 12 Ounces
    • Voltage: 9
    • Certification: CE, UL
    • Warranty: 1
  • Extech 1218G94EA – CB10

    • Material: Plastic
    • Operates: 110-125VAC
    • GFCI Tester: Yes
    • Weight: 0.705 ounces
    • Voltage: 125
    • Certification: UL & CE
    • Warranty: 1

Klein Tools ET310 Circuit Breaker Finder

I like this American hand tool manufacturer Klein Tools produced the ET310, known as one of the most reliable tools among professional electricians. Moreover, it is one of the most convenient choices because it is easy to use; all electricians, including myself, like to have it in their toolbelts.

You get the socket you want to test, plug the transmitter into it, and point the receiver toward the circuit breaker box. The receiving tool scans very correctly and gives accurate results every time. 

So, I never have to worry about the outcome. It always finds the plug, which is controlled by the same circuit. 

Also, a three-pin plug is located on the transmitting tool, and it includes the latest GFCI outlet tester, which allows me to inspect the wiring condition and test GFCI devices thoroughly. It finds the correct one every time it misses its target. After that, I just generally reset the tool and clear its memory; that’s it.

Because it uses PC and PC-ABS materials in its housing, it becomes more durable than other found models on the market.

I can operate it in my projects which are between 90 to 120V AC circuits. However, before using this, always be aware of the current voltage of the experimental circuits, as it is not a high-voltage circuit breaker finder.


  • No extra hassle; plug & detect.
  • GFCI testing technology as a bonus.
  • Can check wiring conditions.
  • The plug can fit in every circuit.
  • More durable than other models.


  • No sensitivity control option is included. 

IDI61534 Ideal Industries Digital Circuit Breaker Finder

Suppose you can spend some extra money on some additional features in a circuit breaker finder. In that case, this ideal Industries Digital circuit breaker finder can be a wise choice. 

Because it can test things on its own, I prefer this one. Professionals, such as myself, are attracted by its self-testing efficiency. I always know when the circuit breaker is on, thanks to the receiver/transmitter duo.

If you compare it to the first one, you will find that it has some extra features that are very helpful. Shutting down itself is one of them. When I don’t use it for 10 minutes, it shuts down automatically, which is beneficial for saving my battery and money. 

Not thus, if the battery life is almost over, say below 7.3 volts, the receiver beeps three times to indicate that it will not work. This is so that I never get a false result.

In a matter of seconds, the 61-534 with a contact-free voltage sensor (82-300 V AC circuits) gives the correct result for finding suitable breakers. Additionally, it also has the GFCI tester. This feature is a real plus for me.

The transmitter works on 120-volt AC circuits like the previous one, and it uses high-quality and durable plastic material with long-lasting durability. 

Due to the company’s experience, I am confident in this tool. Furthermore, because it is one of the oldest electric tool manufacturers in North America, it has proven reliability to its consumers.


  • Quicker than other models.
  • The automatically shut down feature saves battery.
  • Low-battery indication prevents false results.
  • GFCI testers help to check other things.
  • Produced by a reputable industry.


  • More expensive than other models.

Amprobe BT-120 Circuit Breaker Tracer

Maybe the most straightforward kit I can find on the market. All I do is bring it to the workplace, take it outside the box, plug in the transmitter, and get the circuit breaker I’m trying to find. Easy as you like. 

It works only on 90-120V AC circuits like the previous two. So, you can easily make it work on most of the offices and residential sites in North America efficiently.

It has a sensitivity adjustment feature that works automatically. As a result, signals are only received from the correct one, so you never have to worry. It does so by adjusting the power that is transmitted by the circuit breaker.

Besides, LED indicators in both the transmitter and receiver are my favorite feature when using this. If the cell plugged in has power, the red LED on the transmitter lights up. That is an excellent feature that saves me a lot of time.


  • Simple in design and easy to use. 
  • The two-pin plug fits in every socket.
  • LED indicators in both tools reduce the workload.
  • A self-sensing sensitivity system allows fast detection.
  • Cheaper than other models.


  • No GFCI outlet tester.

Extech- 1218G94EA – CB10 Circuit Breaker Finder

The Extech CB10 is an ideal circuit breaker finder tool for most professionals because of its easy plug and detect capability. With some advanced features, including the ability to test receptacle wiring.

I mostly appreciate its practical manual sensitivity setting. You can adjust its sensitivity according to the distance of the circuit breaker. For example, you can set it to high sensitivity if the circuit breaker is located far from the socket. 

Also, suppose the gap between the receiver and the transmitter is not too far. In that case, you can select low-sensitivity detection manually, which is excellent.

The best part is that once the receiver finds the correct circuit breaker, it gives you an audible beeper sound and the LED flashes. In general, you always have a lot of work, so they reduce your workload. Thanks to Extech. 

If you want to test any GFCI circuit, it’s also there to help you because it also has that GFCI transmitter, which is a bonus.


  • Plug and play, no hassles.
  • LED indicator with loud audible beeper indicates correct finding.
  • Can manually adjust the sensitivity system.
  • Tests installation of receptacle wiring.


  • It’s hard to understand to control the sensitivity setting.

Triplett Breaker Sniff-It Automatic Circuit Breaker Locator

5th on my list is the Triplett Breaker Sniff-It, an entirely automated breaker finder highly popular with its users. This is an affordable and advanced circuit breaker finder. A professional-grade tool for a long time, and I am pleased with its service.

Every professional appreciates its ability to read at high speeds, a microprocessor-controlled system action tool to provide high-accuracy results, and a high-speed reading tool to locate the correct breaker.

When you search for frequencies in other models’ receivers, an in-built LED indicator gives you a visible result and audible indications to reduce your workload. 

Also, having both an LED and an audible signal is very helpful. This reduces the effort to zero. Now you never need to check the frequency. All you do is point the receiver toward the breakers. When you get the correct one, it beeps automatically and flashes the LED. I like this feature very much.

The best part I found about this model is that the finder has a high-capacity transmitter, which can work on 120-220V AC circuits. So it is a plus point. 

So you don’t need to worry about the voltage of the circuit. You can use it anywhere, anytime. You also don’t adjust anything after taking it out of the box. Everything is automatically adjusted, and it works smoothly and gives the correct result every time.


  • Works on high-voltage AC circuits.
  • LED flashes and audible indicator eases the effort.
  • It gives you high and accurate results in each test.
  • No adjustment is needed.


  • Not included in the 9-volt battery, so you have to buy it separately.

Southwire Circuit Breaker Finder 41210S

The Southwire 41210S is an excellent circuit breaker finder with multiple uses. This is why most electricians prefer it.

You can use it for 120V AC circuits which are most common in North American offices and residential projects.

Plugging the transmitter into the socket, push the red button on the transmitter to activate it. The receiver has a power button with red color as well. It would be best if you switched on both the controls of the transmitter and receiver. Otherwise, the circuit breaker finder won’t work.

You will impress with the breaker finder’s pinpoint accuracy because It picks up the signal from the transmitter very quickly and accurately. So you never have to be worried about the outcome.

Another thing you love about the receiver is that it gives a sweet beeping sound when detecting the correct breaker. The transmitter can also test GFCI protected outlets. Using the outlet wiring, it sends a signal to the locator.


  • GFCI protected outlets can be tested.
  • To work bulb receptacles, plugs, and live wire, they have included extra accessories.
  • An automatic sensitivity system reduces workload.
  • It gives you a pinpoint correct result every time.


  • Low battery indicators and LEDs are omitted.

Original MASTECH MS5902RTB Automatic Circuit Breaker Finder

As a quick and easy finder, MASTECH has a reputation among professional electricians from all over North America.

The transmitter of the finder works on a maximum of 110V AC circuits which is acceptable to all. Its operating temperature stays between 0 and 50 degrees Celsius.

In my opinion, its most remarkable feature is that it can automatically adjust its sensitivity. So I don’t have to set the sensitivity every time to get a correct and accurate result.

I can find a comparatively large display in it, which is excellent. It has LED flashes and auditory indications as well. The LED flashlight is very much helpful in reducing my pressure at work. 

Though it does not have a GFCI tester, I like its low battery indicator that reminds me when to change the battery. It identifies the condition of each socket so that I get an entire idea about the whole circuit system and can perform my actions accordingly.


  • An automatic sensitivity system reduces workload.
  • LED indicators to give accurate results.
  • An auditory indication system confirms the result.
  • Can get an idea about the battery health 


  • No GFCI tester is included.
  • The 9V battery needs to be purchased separately

Klein Tools ET300 Circuit Breaker Finder For Light Switch

Another is from Klein Tools. This is a cheaper model than the first one. So if you are looking for a budget-friendly breaker finder with a top-quality outcome, then you can choose the Klein Tools ET300. This tool is easy and compact to use.

You can use this small tool which works in harsh conditions as well. The transmitter can cover up to 33 meters when plugged into the socket. 

Another preferable feature is that it has a battery-saving mode as well. The receiver turns off automatically if you don’t use it for ten or more minutes. Indeed, this feature saves me some money.

The ET300 also works on AC circuits between 90-120V. So you can easily use it in most of the projects I work on. One of my favorite things about this tool is that it is a microprocessor-controlled device that gives me accurate results every time.

It has never disappointed me with its results as a very experienced manufacturing company makes it. Therefore, you can blindly rely on its service.


  • Easy to handle, no complex customization
  • Works on a standard AC circuit.
  • It provides accurate results all the time.
  • Cheaper than other models.


  • No GFCI testing system.

Versativ TECH Circuit Breaker Finder Multitool

VersativTECH circuit breakers are among the most reliable circuit breakers on the market. It comes with a GFCI tester and self-sensing technology, as well as an audible beeper and LED flashes.

My opinion is that this breaker finder/GFCI tester is one of the most noteworthy features because it is easy for everyone to use.

It includes easy instructions on the body, so you won’t need to look in the user manual. If you aren’t a professional yet, you don’t have to worry about using this. Just take out this breaker, follow the instructions on it, and go to work. Simple as that.

The tool uses a GFCI tester, which can detect five different types of faults in your circuit. You can identify the problem by following the LED indications.

Due to its incredibly powerful and high-quality microprocessor, I like its self-adjusting sensitivity system. Additionally, it automatically adjusts the sensitivity according to the distance between the transmitter and receiver.

Moreover, the beeper is essential when it comes to finding the right one. There is no need to look at the small screen to see the frequency each time. That’s why when the right one is found, the device emits an audible beep.


  • LED flashes and an audible indicator
  • An automatic sensitivity system reduces workload.
  • A carrying case is included.
  • It gives a pinpoint correct result every time.


  • Low battery indicators are omitted.

High-Tech HTP-7P Digital Circuit Breaker Detective

I found this HTP-7P Digital Circuit Breaker Detective when I was looking for a high-powered circuit breaker finder. The tool can work on both standard and higher voltage circuits up to 280V.

Additionally, this one has printed instructions on the receiving tool. Therefore, even if you cannot attend a project, you can send someone else if they do not know how to use it. Thus, the instructions are easy to understand and follow by anyone.

This breaker automatically switches off if it does not find any actions during a specified period. This feature conserves the battery and saves some money as well.

Another great feature is that it comes with a carrying case with pockets. So, you can put every tool in its place and find any of them quickly. I also like its automatic adjust sensitivity, which makes it very useful. So you do not need to change the sensitivity while using it.


  • Easy to handle, no complex customization
  • Works on a high-voltage AC circuit
  • Carrying toolbox with separate pockets
  • It saves the battery itself.
  • Cheaper than other models


  • No GFCI testing system.
  • There is no LED or audible indicator

What to Look for When Buying Circuit Breaker Finders

It is not easy to find a good quality circuit breaker finder. There are so many models available, and it’s only natural to feel overwhelmed at first glance. So when buying one, read some of the things you should look for to ensure you get a suitable model.


Circuit breaker finders should have a high enough rating. The higher the amps, the better the circuit breaker finder will be. It will not be able to detect hard-to-reach breakers if the rating is too low. In short, this is the 1st thing you need to look for when buying one.


A circuit breaker finder should be easy enough to use. Also, controls and features should be easy to understand so that anyone can utilize the device without technical training. You should not purchase a difficult one. Instead, look for finders with one-touch controls, non-slip grips, and brightly colored buttons.


For best results, you should purchase a UL-certified circuit breaker detector. UL certification means the breakers have been tested and verified to meet safety standards. The UL seal is not just a standard for breakers but also a guarantee that products for your home are safe.

GFCI Testing Capability

Remember that a circuit breaker finder should be able to test GFCIs too. Since most households have GFCI outlets installed, so it is necessary to get a breaker finder to try them. You should choose a breaker finder that can detect GFCIs and highlight them on the device’s display.

LED light & Display

Try to buy a breaker finder with a bright LED light and a large display. A breaker finder with a small display will be tough to see, and a light that is too dim will be hard to use. So it is best to go for one with a bright LED and large-sized display for convenience and ease of reading.


Does a circuit breaker finder work with fuses?

The circuit breaker finder works on any home’s electrical system: fuses, breakers, or ground fault circuit interrupters (GFCI).

Will a circuit breaker finder work with a dead outlet?

No, a circuit breaker finder only works on live outlets. The unit will not work with any circuit that has been turned off.

How do you trace circuit breakers?

When an electrical circuit breaker is tripped or fails, you can often follow it directly to its power source. Unfortunately, many modern homes run several circuits from one electrical box, so it isn’t always easy to identify the circuit breaker that controls a specific outlet.

Can you use a circuit breaker finder on an extension?

No, an extension cord or power strip does not contain a circuit breaker. So it will not work on extension cords because it isn’t possible to trip the unit itself.

How do I find a circuit breaker without power?

If you are trying to locate a circuit breaker that is no longer receiving electricity, the device will not sense it. This is because the circuit breaker finder only works when a circuit is powered on.


Finding a suitable circuit breaker for your home is a challenge. It is not easy to know which circuit breaker controls what, and you cannot just flip every switch in the house until one of them works. Moreover, most people have no idea how many amps they are using or how much power their appliances consume.

A circuit breaker finder will show you exactly where to look for your problem. It will also show you how many amps each appliance is using so that you can make any necessary adjustments.

If you want to save money on your electric bill and protect yourself from electrical fires simultaneously, this will be an excellent tool for you!

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