The Klein Tools ET310 Circuit Breaker Finder with Integrated GFCI Outlet Tester is a digital circuit breaker finder used to locate the correct circuit breaker in a panel to which an electrical outlet or fixture is connected. The Transmitter is connected to the electrical outlet or fixture in the circuit while the receiver is used to scan the breakers in the circuit panel. The Transmitter also features a GFCI outlet tester.

• Receiver powers off automatically after approximately three minutes of non-use to conserve battery life
• Low battery indicator
• CAT II 120V safety rating
• Receiver delivers clear visual and audible indications when the correct breaker has been located
• This circuit breaker finder can quickly and accurately locate the correct circuit breaker in a panel corresponding to the circuit to which an electrical outlet or fixture is connected
• Transmitter incorporates a GFCI outlet tester to inspect the wiring condition at the electrical outlet and test GFCI devices
• Transmitter docks in the Receiver for convenient storage as a single item when tester is not is use
• Easily accessible battery compartment. Uses one 9V battery in receiver only; Transmitter does not require a battery
• Measurement Category II is applicable to test and measuring circuits connected directly to utilization points (socket outlets and similar points) of the low-voltage MAINS installation
• The transmitter may be connected to other electrical fixtures using optional accessories which are sold separately (Cat. No. 69411)
• Transmitter is powered by the circuit when connected to the electrical outlet or fixture
• GFCI tester consists of two parts - a Transmitter connected to the electrical outlet or fixture, and a Receiver used to scan the panel to locate the correct breaker
• Operates on 90-120V AC circuits
• Built to withstand a 6.6-Foot (2 m) drop
• Includes Transmitter, Receiver, user manual, and 9V battery (for Receiver)
• Transmitter incorporates a three-pin plug for connecting to North-American-style grounded electrical outlets
• Warnings
• DO NOT use if the tester appears damaged in any way. Always consult a qualified electrician to resolve wiring problems.
• Read, understand, and follow all warnings and instructions before operating testers.
• Before each use, verify tester operation by testing on a known live and correctly wired receptacle and circuit.
• Exercise extreme caution around energized, bare wires, especially when working in or around an open breaker panel.
• Tester is intended for indoor use only. The tester is designed for use with 120V AC electrical systems. DO NOT connect to higher voltage electrical supplies.
• If using accessories to connect to bare wires ensure that the circuit is not energized before inspecting, applying, or removing the transmitter.

• Item Weight (lbs) : 0.6250
• Overall Width : 1.39" (3.5 cm) (With Transmitter docked in Receiver)
• Application : Locate Circuit Breakers in Panel, Test GFCI Devices
• Type : Electronic Tester
• Item Depth (in) : 10.9600
• Included : Includes Transmitter, Receiver, user manual, and 9V battery for Receiver
• Material : PC & PC-ABS housing and electronic components
• Standard : CATII 120V
• Overall Height : 2.16" (5.5 cm) (With Transmitter docked in Receiver)
• Special Features : Transmitter docks in Receiver Transmitter integrated GFCI outlet tester in receiver
• Style_Name : Circuit Breaker Finder
• Weight : 7.2 oz. (204 g)
• Accessories : 5139, 5139PAD, 69411
• Overall Length : 10.96" (27.8 cm) (With Transmitter docked in Receiver)
• Item Width (in) : 2.1600
• Item Height (in) : 1.3900