Tow Doctor™ Trailer Wire Harness Test Unit
- Tests all TRAILER functions: left turn, brake, tail, backup lights; electric brakes and auxiliary power
- Designed so that one person can make sure a trailer has been wired properly and all functions are working
- Trailer lights illuminate and LED lights on the tester to show function operation
- Adapts to 4-Wire Flat, 6-Pole Round, or 7 RV Blade
- Includes battery terminal clips. Can be used with any 12-Volt battery
- Amperage meter shows actual amp draw. For electric brakes, magnets are activated to determine correct operation
40-50928 TOW DOCTOR TRAILER WIRE
- Brand: HOPPY
- Product Code: 40-50928
- Weight: 6 lbs.
- Availability: In Stock
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Retail Price: $904.10