- 【7 Blade & 4 Pin Tester】 MECMO 2-in-1 Towing Vehicle Trailer Light Socket Tester includes both 4 way circuit tester and 7 way trailer plug tester. Universal fits for most truck, helps quickly identify lighting problems of your vehicle end 4-flat and 7-way trailer circuit connectors.
- 【Rotatable Indicators Panel】 In order to better read the indicators clearly, this 7 pin 4 pin trailer socket tester is designed to be rotatable for both side (twist to 90° for both side)✅. Easily adapts to any mounting positions of you vehicle end trailer light plug.
- 【6 Diagnostic LED Indicator】Design with easy-to-read LED light illuminate to test trailer light wire circuit status: confirm the functionality of your vehicle’s trailer wiring harness’s brake lights, turn signals, taillights, stop, reverse, electric brakes, and 12V (auxiliary power).
- 【Built to Last】 Excellent waterproof dual way 4 flat and RV 7 blade trailer light tester is made of reinforced ABS plastic, results in a seamless qualitative look. Brass and tin-plated copper terminals provides well-protection, great corrosion-resistance and conductivity.
- 【Easy to Use】 Plug and play circuit tester for vehicle-side trailer wiring connection. 7 pin tester plug into your 7 way RV standard car end socket, and the 4 pin flat side tester plug into your vehicle-side 4-prong T-connector harness or 4 wire taillight connector. Simply and effectively test your trailer light harness.
- 【Red LED Identification Indicators】 MECMO 4 way and 7 way trailer plug tester with indicator diagnostic LED (Red lights) easy-to read signal makes it easy to know if you have a safe vehicle-side trailer wiring connection.
