





⚡ Find the breaker before your coffee cools — precision meets power!
The Klein Tools ET310 is a battery-powered, two-part AC circuit breaker finder and voltage tester designed for 90-120V 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.






| Brand | KLEIN TOOLS |
| Power Source | Battery Powered |
| Style | Circuit Breaker Finder |
| Color | Orange |
| 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 |
| Upper Temperature Rating | 60 Degrees Celsius |
| Measurement Type | Voltmeter and Ohmmeter |
| Maximum Operating Voltage | 120 Volts |
| UPC | 092644692406 |
| Manufacturer | Klein Tools |
| Global Trade Identification Number | 00092644692406 |
| Product Dimensions | 10.96 x 2.16 x 1.39 inches |
| Item Weight | 7.2 ounces |
| Department | Unisex-Adult |
| ASIN | B07QNMCVWP |
| Item model number | ET310 |
| Batteries | 1 9V batteries required. (included) |
| Date First Available | April 15, 2019 |
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