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The KLEIN TOOLSET310 is a battery-powered, dual-component AC circuit breaker finder and voltage tester designed for professional-grade electrical troubleshooting. Featuring a transmitter that plugs into standard North American outlets and a receiver that scans panels with clear visual and audible signals, it ensures precise breaker identification on 90-120V circuits. Integrated GFCI outlet testing adds an essential safety layer, while the compact docking system keeps tools organized and ready for action.






| 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 |
| 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 |
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