This connects directly to the master wind unit. As well as repeating the wind speed it shows wind direction in high resolution when sailing close to - or running with the wind. Complete with 5M cable. Technical Specifications: Consumption, 10mA+ (25mA for display illumination max) 7 levels of display backlighting Display case size 110 x 110 mm Depth behind panel 30mm Complete with 5 meter cable, 'O' ring and weather coverThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.