Speedometer: Application : motorcycle car truck boat (The mileage is not re-settable, it is like on a car and just keeps adding miles) Operating voltage: 9-32VDC Fixing dimension: 85mm (Around 3-3/8 Inch) Scale Part: 0-4/4 Bezel:SS316L Description: Magnet Movement gauge Red Backlight Indicating range: 0-200MPH/0-300KM/H Signal:GPS Tachometer: Indicating range: 0-8000 RPM Operation mode: LCD display Red Backlight Description: Magnet Movement Gauge Touch-sense button to change the setup parameters. Easy setup for pulse/rev. Accept all input signals. Input ranges: Oil pressure: 10-184ohms, show 0-145 PSI Fuel level: 240-33 ohms, E – F. (If you want a 10-180 ohms input, please leave a message during the check out so we can swap for you). Temp: 287.4-22.4 ohms, show 100-250 F Volt: 8-16 V.