GPS Speedometer With Tachometer 8000RPM DC9 to 32V IP67 Waterproof 0 to 160MPH Red Backlight Accurate for Boat ATV1. Clear Display: GPS speedometer can display current speed and total mileage, providing red backlight with directional light.2. Features: Marine GPS speedometer with high accuracy, fast positioning confirmation, short start up time, giving you an excellent use experience.3. Rust Proof: GPS speedometer is made of stainless steel, rust proof, IP67 waterproof, and can adapt to harsh weather conditions.4. Stable Signal: The signal comes directly from the satellite signal receiver (GPS antenna) and no other speed sensor is required.5. Indication Range: 0160MPH speedometer with 8000 RPM tachometer, suitable for marine boats, ATVs, vehicles, practocal for use.Specification:Item Type:GPSSpeedometerMaterial: StainlesssteelFixed Size: 85mm(3 3/8in)Indication Range: 0-160MPH speedometer with 8000 RPM tachometerBacklight: Red backlightSignal: Global Positioning SystemOperating Voltage: 9-32V DCOperating Temperature: -40 to 85CGrade: IP67 waterproofThe panel has standard 85mm (3 3/8in) holes and a 55mm (2 3/16in) clearance at the back of the panel to fit the gauge.Application: Marine boat, ATV, vehiclePackage List:1 xGPSSpeedometer1 x GPS Connection Cable1 x User Manual