4 Way flat 7 way round trailer tester 2 PC portable trailer light circuit functions plug
Features:
Easily and quickly test trailer circuits on most RV, trucks.
Tests 6 separate trailer light functions.
Bright LED indicators.
Tests left, right, tail, and brake lights.
Fits 4-way flat trailer plugs.
r>Male and female brass connectors.
Portable size for travel and storage.
Included: 1 Pc 4-way 1 Pc 7-way