KUS GPS Speedometer Gauge 15 Knots (Black Bezel and Dial) ...
Faria 50 knop. GPS Speedometer, Telmo
Speedometer with GPS / 0-15 knots only 139,95 € | SVB
Amelec Australia | GPS Speedometer Plastic 85mm (30 knots)
Digital Gps Speedometer Knots Mph Km/h Adjustable Red Backlight Ip67 Waterproof Lcd Display Gauge Odometer For Boat Truck Car - Speedometers - AliExpress