Small in size, the 1623 is big on power, clarity and advanced radar features. The slim-line monochrome LCD display and lightweight radome antenna make it ideal for power or sail boats as small as 17 feet. This 2.2kW radar has a 16 nautical mile range, yet will zoom down to 1/8 nautical mile for tight navigation in harbors and inlets. The 1623 radar lets you readily identify objects, thanks to a high definition 6" Silver Bright LCD screen that clearly separates targets. Plus, the four-tone target display lets you easily differentiate between stronger and weaker echoes, helping to alert you of any danger. Standard Features Waterproof, 6 Inch Silver Bright Monochrome LCD Display 13 User Selectable Range Scales from 1/8 to 16 N.M .