






Klein Tools Digital Circuit Breaker Finder with GFCI Outlet Tester
- Locates circuit breakers quickly with visual and audio cues
- Built-in GFCI outlet tester adds diagnostic functionality
- Auto shut-off after 3 minutes conserves battery life
- Works on 90-120V AC circuits
- Batteries Included?: No
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Description
Klein Tools Digital Circuit Breaker Finder
[ET310] GFCI Outlet Tester
The ET310 digital circuit breaker finder from Klein Tools is an easy way to pinpoint circuit breakers that are connected to electrics fixtures. Simply attach the transmitter to an electrical outlet (or fixture), and use the battery-powered receiver to scan the panel's breakers to identify the active one.
Proudly Made in the U.S.A. ![]()
- Notable Features
- » Clear visual and audible indicators on receivor when breaker is located
- » Operates on 90-120V AC circuits
- » Transmitter incorporates a GFCI outlet tester
- » 3-pin plug for NA-style electrical outlets
- » Optional accessories can make transmitter compatible with other fixtures
- » Devices turns off after three minutes to conserve battery
Item Details
| Brand | Klein Tools |
| SKU | KLEIN-TOOLS-ET310 |
| Manufacturer Part Number | ET310 |
| UPC | 092679692406 |
| Color | Orange |
| Length | 10.96 in (278 mm) |
Specifications
Power Details
| Batteries Included? | No |
Unit Dimensions
| Length | 10.96 in (278 mm) |
| Width | 1.39 in (35 mm) |
| Height | 2.16 in (55 mm) |
| Weight | 7.2 oz (204 g) |
Packaging/Shipping Dimensions
| Length | 0 in |
| Width | 0 in |
| Height | 0 in |
| Shipping Weight | 0.45 lb |
Additional Details
| Warranty |
Klein Tools Commercial and Industrial Products Warranty Battery Junction Warranty |
| Return Policy | Return Policy |
Bright Buys
- Trusted and reliable; consistently rated as a top customer pick for LED flashlights
- Superior 1,600mAh capacity means longer runtimes and less frequent battery changes
- Optimized for both high and low drain devices
- State-of-the-art automated production lines ensure the highest quality and safety protections
- Ideal for low-drain applications that require a primary battery to provide constant power
- 10-year shelf life - stock up for emergencies!
- The best choice for consistent power, great in low-drain devices like remotes
- Safe and reliable - capable of performing in high or low temperatures
- 11-in-1 card sized tool fits in your wallet or on a keychain!
- Packed with handy tools including a screwdriver & 7 wrench settings
- Serrated saw and straight-edge knife for quick cutting jobs
- Can + bottle openers for campsite meals or end-of-shift relaxation
- Four-channels saves time by charging multiple batteries at once.
- Capable of charging multiple chemistries by automatic battery detection.
- LCD display reveals the charging progress, battery type, voltage, and charging current.
- Automatic power-off function cuts off the current when charging is complete.
- Trusted and reliable; consistently rated as a top customer pick for LED flashlights
- Superior 1,600mAh capacity means longer runtimes and less frequent battery changes
- Optimized for both high and low drain devices
- State-of-the-art automated production lines ensure the highest quality and safety protections
- Extremely compact and powerful EDC
- Max output of 3,000 lumens with a max throw of 229 meters
- Dual fuel and available with extender for use with a 26650
- Equipped with 4 x CREE XPG3 LEDs for maximum illumination
- Reliable lithium chemistry with a 10 year shelf life
- Regarded as one of the highest quality CR123A batteries on the market
- Used in LED flashlights, alarm systems, ranger finders and more
- Cells are lightweight, durable and ideal for long term storage
- Jacket style may vary
- 225mAh capacity drives long runtimes for watches and electronics
- CR2032 coin cells packed with 3V of power
- Convenient 6-piece retail card provides backup batteries
- Easily replaceable primary lithium cells
- Top recommended battery for Apple AirTags
- Trusted and reliable; consistently rated as a top customer pick for LED flashlights
- Superior 1,600mAh capacity means longer runtimes and less frequent battery changes
- Optimized for both high and low drain devices
- State-of-the-art automated production lines ensure the highest quality and safety protections
- 3,000 lumens and a 250-meter throw - fierce illumination to light up your backyard
- Multiple output modes are accessible via easy side switch operation
- Strobe, SOS, and beacon modes offer distinct signaling capability
- High-capacity battery supports the light with a maximum 227-hour runtime



