The GP450XB GPS navigation system has a 4.5 inch landscape screen and utilizes a 12-parallel channel receiver with an external antenna.
The GP450X is a cost effective solution for a compact, full featured plotter suitable for any coastal, fishing or pleasure craft. 
The stand out feature on this unit is the clarity of the 4.5” monochrome silver bright LCD which boasts a pixel resolution of 240w x 160h.
The plotter also has seven different screens to ensure you get to your destination. The unit is easy to use, and comes with a bracket for simple dash mounting, and flush mounting is also an option.
Additional features include:

• 999 Waypoints with alpha-numeric tag and comment
• 50 routes with up to 30 waypoints/route
• Alarms for: Arrival, Anchor Watch, XTE, Speed, Time, Trip, Odometer
• NMEA 0183 and RS232 output/interface
• Custom Nav Data displays
• Plotter scale range: 0.02 – 320 nm
• Multiple language options