MDS 10-4 - 4kW, 4' Open Array, ranges from 1/8 to 48NM, a 2.4 degree Horizontal Beam WidthThe new SI-TEX MDS Radar Sensor Series connect to your SI-TEX ColorMax Wide, ColorMax Sea Link, ColorMax Pro, ColorMax 15, Explorer Plus, or Trawl Plot 12SD Charting Systems to add affordable full-featured Radar capabilities. Also works with Standard Horizon Charting Systems -- models CP180, CP180i, CP300, CP300i, CPV350, CP500 and CPV550.