Hopkins Towing Solution 48675 Flat-Lite 4-Wire Flat LED Tester Dustcover

Flat-Lite 4-Wire Flat LED Tester Dustcover. Flat-Lite 4-Wire Flat LED Tester Dustcover; LEDs Confirm Electrical Continuity;. Circuit Tester. Red LED Light Will Glow If Connection Is Correct. Dust Cover Prevents Corrosion To 4 Wire Flat.