Although it sounds easy, mapping all the breakers in a service panel can take two people several hours.
This gear works for either circuit breakers or fuses and is very easy to use.
What Is a Circuit Breaker Finder?
The Spruce /Kevin Norris
A circuit breaker finder is a small battery-operated electronic tool with two partsa transmitter and receiver.
It makes the task of matching circuit breakers with their wiring circuits much easier.
A faint electronic signal is sent through the circuit wires.
The Spruce / Kevin Norris
At thebreaker box, you use the electronic receiver that is paired with the transmitter.
It’s as simple as that.
The battery compartment is easily accessed by sliding a cover back on the bottom of the receiver.
The Spruce / Kevin Norris
After installing the battery, adjust the receiver for maximum sensitivity.
Plug the transmitter into a wall outlet.
The outlet power should be on, and the transmitter should light up, indicating power.
The Spruce / Kevin Norris
Place the receiver near the transmitter.
The receiver should light up and/or beep to indicate it has picked up the transmitter signal.
you’re free to now use the machine to locate the matching circuit breaker in your breaker box.
The Spruce / Kevin Norris
Match the Circuit to Its Breaker
Open to the door to the main circuit breaker box.
The receiver will stop beeping.
This confirms you have turned off the correct breaker.
The Spruce / Kevin Norris
Keyless socket adapters are sold at hardware stores and home centers and cost less than $10.
Often, one comes in the same kit as the circuit breaker finder.
Buying vs.
The daily charge for this kind of tool is usually $10 to $15.
Store the tool in a dry location.
If the tool refuses to work even with a new battery, it probably needs to be replaced.
This is not a tool that can be affordably repaired.
