Dark, smoke lens creates optimum visibility for reading the large LED display that shows voltage output to brakes and connection to trailer. Digital display allows you to identify problems as they occur. Flexible mounting options allows you to mount the Pilot® in any direction. Microprocessor provides the ability to read the display even when mounted upside down. Standard mounting bracket and hardware included. Use on any 12V negative ground system. For 2 to 6 brake systems. 3 year warrenty.