McMaster-Carr logo
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    8 Products

    Circuit Tracers

    Image of Product. Front orientation. Circuit Tracers. Circuit Tracer.
    Image of Product. Front orientation. Circuit Tracers. High-Resolution Circuit Tracer.

    Circuit Tracer

    High-Resolution Circuit Tracer

    Locate cables behind walls, check for continuity, and identify circuit breakers. Connect the transmitter to an electrical receptacle or cable to send a signal to the receiver, which identifies the path of the cable or the correct breaker with a digital display, indicating lights, and sound alerts.
    High-Resolution Circuit Tracer—High-resolution circuit tracers have a receiver with adjustable sensitivity, so they can pinpoint the transmitter's signals from a greater distance than standard circuit tracers.
    Tester Type
    Measures
    For Max.
    Dp.
    Alert Type
    AC Voltage
    DC Voltage
    Includes
    Lead
    Lg.
    Batteries
    Included
    Each
    Circuit TracerBuried Lines, Circuit Breakers, Circuit Shorts, Continuity, Data Cable Location, Fuses, Ground Faults, Wire Location3 ft.Light, Sound, Digital Display0V AC to 600V AC0V DC to 600V DCTransmitter, Receiver, Fabric Carrying Case, Alligator Clips, Test Leads, Electrical Outlet Adapter32"Yes000000000000000
    High-Resolution Circuit TracerBuried Lines, Circuit Breakers, Circuit Shorts, Continuity, Data Cable Location, Fuses, Ground Faults, Wire Location20 ft.Light, Sound, Digital Display0V AC to 600V AC0V DC to 600V DCTransmitter, Clamp-On Current Transducer, Hard Carrying Case, Alligator Clips, Receiver with Sensitivity Adjustment, Batteries, Socket Adapter, Test Leads23 ft.Yes0000000000000000

    Data Cable Identifiers

    Image of Product. Front orientation. Data Cable Identifiers.
    Trace unshielded data and telephone cables to their source. Attach the identifier with the included alligator clips and send a signal through the cable. The signal is then received by the removable handheld probe. As you get closer to the cable you're tracing, the probe's audio and visual signals get stronger.
    Measures
    For Cable Type
    Alert Type
    Features
    Batteries
    Included
    Each
    Cable LocationCoaxial, Ethernet, TelephoneLight, SoundF-Type Male Coaxial Connector, RJ11 Plug, RJ45 Plug, Two Alligator ClipsYes0000000000000

    Current Detectors

    Image of Product. Front orientation. Current Detectors.
    Check for the presence of AC current and voltage without making direct contact with a wire. The detector has light and sound alerts that indicate current when it is held near the electrical component.
    Electrical Safety
    Rating
    Measures
    AC Current
    AC Voltage
    Alert Type
    Sensor
    End
    Certification
    Batteries
    Included
    Each
    CAT III, 600VAC Current, AC Voltage200 mA to 1,000 amp12V AC to 600V ACLight, SoundNoncontactC-UL Listed, UL ListedYes0000000000000

    Circuit Breaker Identifiers

    Image of Product. Front orientation. Exploded view. Circuit Breaker Identifiers. 120V AC.
    Image of Product. Front orientation. Circuit Breaker Identifiers. 80V AC to 300V AC.

    120V AC

    80V AC to 300V AC

    Identify the circuit breaker connected to an electrical receptacle. The transmitter plugs into the receptacle and sends a signal through the cable to the receiver. Move the receiver over the breakers, and light and sound alerts indicate when you find the correct breaker.
    Circuit Breaker Identifier Adapters—Circuit breaker identifier adapters trace breakers for light bulb sockets and switches.
    Batteries
    Circuit Breaker
    Identifier Adapters
    AC Voltage
    Alert Type
    Includes
    Plug No.
    of Blades
    Electrical
    Connection
    Certification
    Included
    Size
    No.
    Required
    Each
    Each
    120V ACLight, SoundTransmitter, Receiver, Test Probe3Straight BladeUL Listed, C-UL ListedNo9V10000000000000000000000000000
    80V AC to 300V ACLight, SoundTransmitter, Receiver, Alligator Clips, Socket Adapter, Test Leads, Test Probe, Electrical Outlet Adapter2Straight BladeUL Listed, C-UL ListedYes9V100000000000000__00
    back to top