Model # ET300

Internet #202330830

Store SKU #365518

Klein Tools Digital Circuit Breaker Finder
0092644693021

Klein Tools

Digital Circuit Breaker Finder

  • Accurately detects any 120 V standard outlet's circuit breaker
  • Employs auto power-off feature and is microprocessor controlled
  • Includes a lifetime warranty
$4137 /each

Frequently Bought Together

Product Overview

Quickly and accurately find the corresponding circuit breaker of 120-Volt standard outlets with the Klein Tools Digital Circuit Breaker Finder. Featuring an LED display, this circuit breaker finder has an arrow that flashes for easy identification and a transmitter that reaches distances of up to 1,000 ft. The included 9-Volt battery features a long life thanks to the automatic shut off.

  • Finds the corresponding circuit breaker of 120-Volt standard outlets without interruption of service
  • Power can be left on for convenience
  • Strong transmitter reaches distances of up to 1,000 ft.
  • LED display and flashing arrow indicator for easy identification
  • Includes one 9-Volt battery
  • Auto shutoff provides long battery life by conserving power
  • 90 - 120-Volt operation
  • Click here for more information on Electronic Recycling Programs

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Customer Questions & Answers

Not sure how to ask this, but how the heck can so many people give a 1 and it is not trusting and...

Not sure how to ask this, but how the heck can so many people give a 1 and it is not trusting and so many get a 5 and works fine???? I get the switch problem and I love the guy's fix. I get also the issue that could happen trying to learn the panel. It is driving me crazy, I cannot trust anything out here on this matter.
Asked by: AL9000
First off, this is not a $$$ circuit analyzer. Take your time and be methodical. It works well for what it is.
Answered by: ISMG
Date published: 2017-05-24

Reverse find?

Would it be possible to use the alligator clip adapter at the breaker and then use the receiver to find the receptacle(s) on that circuit?
Asked by: Steve
No.
Answered by: ISMG
Date published: 2017-06-23

Does it include the wire splicer and snake in the picture?

Does the package come with the cable splicer and a snake? I'm just wondering because its shown in the picture.
Asked by: MrMcKulit
It is the transmitter and receiver only.
Answered by: TownDestroyer
Date published: 2016-12-18

I have a GFCI which is wired wrong (hot and neutral are switched), need to find its circuit breaker. Can I use the Klein transmitter on this outlet ?

Asked by: Otto
As far as I can tell, as long as the outlet is providing power (even if the wires are wrong), the transmitter will transmit and the receiver will be able to receive/detect.
Answered by: Mitchell
Date published: 2017-03-16
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Customer Reviews

Digital Circuit Breaker Finder is rated 3.6 out of 5 by 133.
Rated 4 out of 5 by from It does what it's supposed to do. Easy to use (follow the instructions... especially about let... It does what it's supposed to do. Easy to use (follow the instructions... especially about letting the tool learn the panel.) Nice loud tone and bright green arrow... Signal was strong enough for the 1800 Sq Ft House I was working on. The price is right. The reason I'm giving it 4 stars instead of 5 stars is the annoying on-switch function. The switch to turn it on is very touchy. You barely bump it on anything the unit powers up. (In your tool bag)... A hard case would be nice or an On-Switch that has more resistance or one that you must hold down for a full one or two seconds. It functions this way during the off-cycle to power down.. You must hold it down to have it turn off, but you can turn it on by barely touching the switch...
Date published: 2016-12-29
Rated 3 out of 5 by from Klein tools are high quality but this circuit breaker finder could be improved. The on/off switch... Klein tools are high quality but this circuit breaker finder could be improved. The on/off switch is way to touchy and a dental rubber band around the button does fix that problem. This tool does do what it's designed to do but, it could be a better tester if the accessories were also included and the transmitter functioned as an outlet tester with ground fault test button. If these items were added, I would give it a solid 5 stars.
Date published: 2017-03-17
Rated 3 out of 5 by from Let me start by saying this unit works great if you use it correctly and follow the directions. I... Let me start by saying this unit works great if you use it correctly and follow the directions. It would at best identify two breakers side by side as the target but I'm fine with that...it's better than having to test all 50 breakers to find the one you need! I agree with the reviews about the on-off switch being much too sensitive, but there is an easy fix! Take a small o-ring and insert it under the lip of the switch, this secures it from being turned on in the tool bag but still allows regular operation (see photo attached) This idea cures the problem and makes this unit worth the money.
Date published: 2016-11-18
Rated 3 out of 5 by from Great product when in use. The irritating thing is the stupid design of the on/off button. On the... Great product when in use. The irritating thing is the stupid design of the on/off button. On the left of receiver is the on/off button, and any time it touches ANYTHING it turns on, and it will, so you can't put this thing in your bag, pocket, or truck, 'cause it will go off like your dog on a postman. All they need to do is have a positive on/off slide button; problem solved.
Date published: 2017-01-27
Rated 5 out of 5 by from I love this thing and so does my previous circuit breaker finder (my wife). Make sure you "train"... I love this thing and so does my previous circuit breaker finder (my wife). Make sure you "train" it each time you search for a breaker. You turn off, if it was already on. Turn it on a few feet from the panel and then drag it down the rows of breakers, touching the plastic parts of the breakers. It may beep on the first one so ignore it. Keep it the same distance as you scan up and down the breaker rows. Once it beeps on a certain breaker, then shut that breaker off - the beeping should stop. Double breakers (2 switches in one breaker module) are a bit much for this thing. It will beep on the entire double breaker but not the one you need to shut off. You have a 50-50 chance of turning off the wrong one, but that is a small price to pay for not having to shut *all* of the breakers in the panel off, one at a time. Buy the alligator clips and screw-in socket plug option if you are working on lights and light switches. If there is no neutral wire in the light switch box, then you can cheat and connect the gator clips for the transmitter module to hot and ground - not very safe, but it works. The on-switch is a pain, but as someone else noted, you can pop an O-Ring around the Finder's power button to make it harder to activate in your tool bag. A rubber band works too.
Date published: 2017-01-19
Rated 4 out of 5 by from Very useful tool but you have to be careful to verify you have the right circuit by cutting the p... Very useful tool but you have to be careful to verify you have the right circuit by cutting the power to check after finding it. I find that most times it either identifies the right one, or it picks one circuit in the box that it keeps wanting to go to (need to re-read the directions and make sure the power button is pointing up). Simplifies finding circuits. Directions very simple, very simple item to use. It is nice to be able to find live circuits without have to cut power, hook up a trace signal on the line, work in a live box, etc to find or verify circuits. Just hook the sender into the live outlet, go to the panel, turn on the receiver and make sure the power button is up, slowly scan the breakers in a vertical pattern the first time ignoring the beeps and tones, scan them a second time to find the circuit the unit identifies by beeping on it. Cut the power to that circuit to verify.
Date published: 2017-03-28
Rated 5 out of 5 by from Works great!! I just checked my whole panel in my house. All the breakers where labelled correctly before I started. I followed the instructions and scanned the panel the first time and ignored the random beeps, like the instructions said. Scanned a second time and found every circuit correctly. 100% on 30 breakers. I'm looking forward to use this guy at work on our commercial panels during Renos!
Date published: 2017-05-05
Rated 5 out of 5 by from This product is extremely easy to use. It can quickly identify unknown or unlabeled breakers in m... This product is extremely easy to use. It can quickly identify unknown or unlabeled breakers in moments. Great for inspection services, handy man and home owner. The price is more than reasonable as a first step indicating tool. It will turn a 2 hour, up and down the stairs job into a 20 minute piece of cake. I would recommend it for every tool bag.
Date published: 2017-05-24
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