


About Klein Tools
As an American manufacturer of hand tools for more than 160 years, Klein Tools makes premium-quality, professional-grade tools that deliver performance, durability and precision. Our team continues to put six generations of expertise into each tool by using the highest quality materials and superior workmanship.
Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day … Since 1857.
Circuit Breaker Finder Tool Kit with Accessories, GFCI Outlet Tester, 2-Piece Set, Includes Cat. No. ET310 and Cat. No. 69411
This 2-piece Klein Tools Digital Circuit Breaker Finder with GFCI Outlet Tester and Circuit Breaker Finder Accessory tool kit does more than just indicate standard circuits. Adapters in this kit indicate the correct breaker of bare wires or other exposed conductors. 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.
- Circuit Breaker Tool Kit can help quickly and accurately locate the correct circuit breaker in a panel corresponding to the circuit to which an electrical outlet or fixture is connected
- Digital Circuit Breaker Finder with GFCI Outlet Tester (Cat. No. ET310) receiver delivers clear visual and audible indications when the correct breaker has been located
- Operates on 90-120V AC circuits
- Transmitter incorporates a GFCI outlet tester to inspect the wiring condition at the electrical outlet and test GFCI devices
- Circuit Breaker Finder Accessory Kit ( Cat. No. 69411) includes standard 3-prong to 2-prong grounding adapter
- Light socket adapter for finding the correct circuit of a lighting fixture
- Alligator clip adapter enables use on bare wires
FEATURES

Circuit Breaker Finder locates the correct breaker in a panel

Tester consists of two parts: a Transmitter and a Receiver

Includes light socket, 3-to-2-prong, and alligator clip adapters
![]() Klein Tools ET450 Advanced Circuit Breaker Finder and Wire Tracer Kit for Ene... | ![]() Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, ... | ![]() Klein Tools ET270 Auto-Ranging Digital Multi-Tester, AC/DC, Resistance, Conti... | ![]() Klein Tools MM325 Multimeter, Digital Manual-Ranging 600V AC/DC Voltage Teste... | ![]() Klein Tools ET600 Multimeter, Megohmmeter Insulation Tester, 4000 Ohms Resist... | ![]() Klein Tools NCVT1P Voltage Tester, Non-Contact Low Voltage Tester Pen, 50V to... | |
|---|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — | — |
| Price | — | — | — | — | — | — |
| Mfg. No. | ET450 | RT390 | ET270 | MM325 | ET600 | NCVT1P |
| Description | Klein Tools ET450 Advanced Circuit Breaker Finder and Wire Tracer Kit for Ene... | Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, ... | Klein Tools ET270 Auto-Ranging Digital Multi-Tester, AC/DC, Resistance, Conti... | Klein Tools MM325 Multimeter, Digital Manual-Ranging 600V AC/DC Voltage Teste... | Klein Tools ET600 Multimeter, Megohmmeter Insulation Tester, 4000 Ohms Resist... | Klein Tools NCVT1P Voltage Tester, Non-Contact Low Voltage Tester Pen, 50V to... |

Circuit Breaker Finder Tool Kit with Accessories, GFCI Outlet Tester, 2-Piece Set, Includes Cat. No. ET310 and Cat. No. 69411

About Klein Tools
As an American manufacturer of hand tools for more than 160 years, Klein Tools makes premium-quality, professional-grade tools that deliver performance, durability and precision. Our team continues to put six generations of expertise into each tool by using the highest quality materials and superior workmanship.
Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day … Since 1857.

This 2-piece Klein Tools Digital Circuit Breaker Finder with GFCI Outlet Tester and Circuit Breaker Finder Accessory tool kit does more than just indicate standard circuits. Adapters in this kit indicate the correct breaker of bare wires or other exposed conductors. 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.
- Circuit Breaker Tool Kit can help quickly and accurately locate the correct circuit breaker in a panel corresponding to the circuit to which an electrical outlet or fixture is connected
- Digital Circuit Breaker Finder with GFCI Outlet Tester (Cat. No. ET310) receiver delivers clear visual and audible indications when the correct breaker has been located
- Operates on 90-120V AC circuits
- Transmitter incorporates a GFCI outlet tester to inspect the wiring condition at the electrical outlet and test GFCI devices
- Circuit Breaker Finder Accessory Kit ( Cat. No. 69411) includes standard 3-prong to 2-prong grounding adapter
- Light socket adapter for finding the correct circuit of a lighting fixture
- Alligator clip adapter enables use on bare wires
FEATURES

Circuit Breaker Finder locates the correct breaker in a panel

Tester consists of two parts: a Transmitter and a Receiver

Includes light socket, 3-to-2-prong, and alligator clip adapters
![]() Klein Tools ET450 Advanced Circuit Breaker Finder and Wire Tracer Kit for Ene... | ![]() Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, ... | ![]() Klein Tools ET270 Auto-Ranging Digital Multi-Tester, AC/DC, Resistance, Conti... | ![]() Klein Tools MM325 Multimeter, Digital Manual-Ranging 600V AC/DC Voltage Teste... | ![]() Klein Tools ET600 Multimeter, Megohmmeter Insulation Tester, 4000 Ohms Resist... | ![]() Klein Tools NCVT1P Voltage Tester, Non-Contact Low Voltage Tester Pen, 50V to... | |
|---|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — | — |
| Price | — | — | — | — | — | — |
| Mfg. No. | ET450 | RT390 | ET270 | MM325 | ET600 | NCVT1P |
| Description | Klein Tools ET450 Advanced Circuit Breaker Finder and Wire Tracer Kit for Ene... | Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, ... | Klein Tools ET270 Auto-Ranging Digital Multi-Tester, AC/DC, Resistance, Conti... | Klein Tools MM325 Multimeter, Digital Manual-Ranging 600V AC/DC Voltage Teste... | Klein Tools ET600 Multimeter, Megohmmeter Insulation Tester, 4000 Ohms Resist... | Klein Tools NCVT1P Voltage Tester, Non-Contact Low Voltage Tester Pen, 50V to... |





















