Designed so that one person can make sure a vehicle wiring harness has been wired properly and all functions are working. Tests all tow vehicle functions: ground, auxiliary power, brake, directional and backup. Works only with 12 volt negative ground systems.
- Adapts to 4-Wire flat, 6-Round Pole or 7-Way RV Flat Pin
- Heavy-Duty, 20 foot extension cord is included
- Saves time and the cost of a second person at the rear of the vehicle
Seller return policy
If you return a product that qualified for free shipping, the outbound shipping costs will be deducted from your return refund. You may return the item within 90 days from the date your order was received for a refund. We cannot exchange items. Please place a new order online for the replacement item(s). No claims for shortages or damages will be honored unless reported within 10 business days from the date of delivery.




