Test the running and brake lights for both your tow vehicle and trailer with the METT Box. Whether you hookup with a 4 way or 7 way plug, METT Box provides a simple testing solution that helps keep you safely on the road. The METT Box includes anATP base, 12v Battery and a series of LED test lights. The system provides instant feedback on precisely which lights are malfunctioning and where.
- ATP Box
- 12v Battery
- LEDTesting Lights