Klein Tools ET310 AC Circuit Breaker Finder, Electric and Voltage Tester with Integrated GFCI Outlet Tester
Details
- BrandKlein Tools
- Power SourceBattery
- StyleCircuit Finder
- ColorCircuit Finder
- Item Weight7.2 Ounces
Description
⚡ Find the breaker before your coffee cools — precision meets power!
- BUILT IN SAFETY CHECK - Integrated GFCI outlet tester ensures your wiring and safety devices are up to code.
- COMPACT READY TO GO - Transmitter docks neatly into Receiver for easy storage and on-the-go convenience.
- DUAL DEVICE POWER DUO - Transmitter plugs into outlets while Receiver scans panels for seamless breaker detection.
- UNIVERSAL NORTH AMERICAN FIT - Three-pin grounded plug works effortlessly with standard 90-120V circuits.
- PINPOINT ACCURACY ZERO GUESSWORK - Quickly locate the exact circuit breaker with precision signals—no more trial and error.
The Klein Tools ET310 is a battery-powered, two-part circuit breaker finder designed for North American 90-120V AC systems. Featuring a transmitter that plugs into outlets and a receiver that scans panels, it provides clear visual and audible signals to identify breakers quickly. It also includes an integrated GFCI outlet tester for enhanced safety checks, all housed in a compact, dockable design for professional convenience.
Specifications
| Brand | Klein Tools |
| Power Source | Battery Powered |
| Style | Circuit Breaker Finder |
| Color | Circuit Breaker Finder |
| Item Weight | 7.2 Ounces |
| Item dimensions L x W x H | 10.96 x 2.16 x 1.39 inches |
| Min. Operating Voltage | 90 Volts |
| Maximum Operating Voltage | 120 Volts |
| UPC | 092644692406 |
| Manufacturer | Klein Tools |
| Global Trade Identification Number | 00092644692406 |
| Part Number | ET310 |
| Item Weight | 7.2 ounces |
| Product Dimensions | 10.96 x 2.16 x 1.39 inches |
| Country of Origin | China |
| Item model number | ET310 |
| Batteries | 1 9V batteries required. (included) |
| Material | PC & PC-ABS housing and electronic components |
| Pattern | Breaker Kit |
| Voltage | 120 Volts |
| Item Package Quantity | 1 |
| Special Features | Transmitter docks in Receiver Transmitter integrated GFCI outlet tester in receiver |
| Included Components | Includes Transmitter, Receiver, user manual, and 9V battery for Receiver |
| Batteries Included? | Yes |
| Batteries Required? | No |
Have a Question? See What Others Asked
Reviews
S**S
Electric line tracer
I'm not an electrician, but I have to play one in my house. Electricians $$. I also live in a 1940s home, remodeled more than once before and since myself. That means mysterious electric wiring all over. So I needed this badly. Klein is one of the quality devices in line testing, and this one is up to par. It accurately reveals where a outlet leads to which circuit at your electric panel.works well, and accurately almost too sensitive so check nearby circuits several times and settle on the one by flipping that switch and then the outlet then without power. It looks a bit long, but that's because the two parts are meant to when not used. I.e., you don't lose one part.
G**5
Recommended
This is a game changer for DIY'ers like myself. With my panel in the basement missing a lot of labels it makes finding the right breaker a snap. Great investment.
J**Y
Works with no issues
I use this on my house and at work. I haven't had any issues yet and would buy again if need be.
F**S
Better than nothing but not great
If you don't already own a plug tester than maybe it's worth it but as a breaker finder it hunts a lot to find the right breaker. And yes, I followed the directions and did one full pass first. Still, it often can't decide between two or 3 breakers.
D**O
Didnt know I needed this!
This thing is a time savor. Not mention it could be a life savor. I love the tool and how it functions. Recommend getting this one of you have a lot of plugs to replace like I did.
C**P
Must Have for Home Electrical Work
I replace my own fans, lights, and outlets. I don't do electrical work often, so when I do I often have to try 2-3 circuit breakers as the labeling is pretty bad. This lets me pinpoint the proper switch the first try. So no more fire alarms beeping or resetting clocks because I turned off the wrong breaker. Also, the piece that plugs into the wall lights up. When you shut off the correct breaker, the light goes off so you know for sure you got the right one. Still use a voltage detector to be 100% certain, but this gets you to where you feel "certain." I put that in quotes because one mistake with electricity means lights out for human beings.If those kinds of annoyances don't bother you, you don't need this. If they do or you just want an easier way to be sure you've got the correct breaker, this is a great tool set.
C**S
A MUST HAVE!
WELL WORTH IT! Wish I had this years ago. Received this morning, read instructions performed task. did visual just to verify. Making all new legible labels for each circuit.
M**A
Great
Great machine
Common Questions
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3 weeks ago
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