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HomElectrical.com Wholesale Electrical, HVAC & Lighting Supplies for Pros

Gardner Bender 7-Way Trailer Wiring Circuit Tester

Gardner Bender 49047
SKU ECM-49047
Need to test the circuit between a tow vehicle to a trailer? CalTerm's 7 Way Trailer Wiring Circuit Testers plugs into the vehicles tow plug and operates lights, brakes and turns on signals to test the circuits. Shop HomElectrical for more!
Gardner Bender 7-Way Trailer Wiring Circuit Tester

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Gardner Bender 7-Way Trailer Wiring Circuit Tester
Gardner Bender 7-Way Trailer Wiring Circuit Tester
Need to test the circuit between a tow vehicle to a trailer? CalTerm's 7 Way Trailer Wiring Circuit Testers plugs into the vehicles tow plug and operates lights, brakes and turns on signals to test the circuits. Shop HomElectrical for more!
  • Tests 7-way round tow plugs individually.
  • Easily determine if wiring is correct between tow vehicle to the trailer.
  • LED light flashes to indicate a good signal.
  • Durable housing is impact resistant to long use and dependability.

Gardner Bender 49047 Description

  • Tests 7-way round tow plugs individually.
  • Easily determine if wiring is correct between tow vehicle to the trailer.
  • LED light flashes to indicate a good signal.
  • Durable housing is impact resistant to long use and dependability.
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Ships free on orders over $500 of eligible items to all guests.
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$33.91Each
In Stock-

Ships between 04/27/2026 - 05/01/2026

Product Specifications

Part Number49047
Weight0.16-lb
UPC032076947354

Manufacturer Description

The Calterm circuit tester is used to test the power supply from the tow vehicle to the trailer. The LED lights up to confirm the functionality of your vehicle's trailer wiring harness for the tail lights, brake lights, reverse lights, turn signals, electric trailer brakes and auxiliary power. Use on 7-way round tow plug.
Prop65
Important PROP 65 InformationWarning: This product can expose you to chemicals, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov. to CA residents.
Need to test the circuit between a tow vehicle to a trailer? CalTerm's 7 Way Trailer Wiring Circuit Testers plugs into the vehicles tow plug and operates lights, brakes and turns on signals to test the circuits. Shop HomElectrical for more!
Unlock FREE Shipping at $99 by just signing in!
Ships free on orders over $500 of eligible items to all guests.
Free Shipping Eligible
$33.91Each
In Stock-

Ships between 04/27/2026 - 05/01/2026

Gardner Bender 49047 Description

  • Tests 7-way round tow plugs individually.
  • Easily determine if wiring is correct between tow vehicle to the trailer.
  • LED light flashes to indicate a good signal.
  • Durable housing is impact resistant to long use and dependability.

Product Specifications

Part Number49047
Weight0.16-lb
UPC032076947354

Manufacturer Description

The Calterm circuit tester is used to test the power supply from the tow vehicle to the trailer. The LED lights up to confirm the functionality of your vehicle's trailer wiring harness for the tail lights, brake lights, reverse lights, turn signals, electric trailer brakes and auxiliary power. Use on 7-way round tow plug.
Prop65
Important PROP 65 InformationWarning: This product can expose you to chemicals, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov. to CA residents.

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