Amazon.com: Marine Navigator, 4.3 Inch GPS Chartplotter with SBAS and Sound Light Alarm Function, SOG Meter Satellite, COG Meter, Super Waterproof : Electronics
1pc New Style 85mm Gps Speedometers Modification Auto Marine Speed Odometer Sog Cog Trip Gauge With Red Blue White Backlight - Speedometers - AliExpress
New KUS Boat GPS Speedometer Digital LCD Speed Gauge SOG COG Knots Compass with GPS Antenna 85mm Marine Truck Car Motorcycle - AliExpress
Veratron ViewLine GPS Speedometer 0-70 kn Black 110 mm