Feature: -Application: Boat, Yacht, Truck/tractor/E-bike,Motobike, etc. -Electronic Speedometer with Unique High Definition and Contrast Ratio LCD -No Mechanic Sensor, get speed signal from GPS, No GPS Stationary Drift -GPS Blind Area Odometer Compensation -Switch unit between MPH(Mi), Knots(NMI) and Km/h (KM) -Speed Range: 0~299 (MPH, Knots, Km/h) -Mileage Range: 0-999 999.9 (Mi,NMI,KM ) -Voltmeter & Fuel Gauge Switch show -Fuel Gauge Ohm Signal Range Programmable -OverSpeed Buzzer Alarm (Value Adjustable) -Face: Black, White. -Bezel: Black/Silver 316L Stainless Steel (Anti-Corrosion) -Reverse polarity protection and anti-fogging performance -Installation Diameter: 85mm (3 3/8) -Working Voltage:12V/24V (If installed on E-bike, which has max 80V DC, power adapter will be needed) -Working temperatures: - 40 to 85C -IP67 Waterproof Package: 1 X Gauge+GPS Antenna+manual Feature: - Protection ank: IP67 - Resolution range: 21 mm - Assembly: SAE standard 5 holes - Rated current for alarm switch: 500mA - Operating temperatures: - 40 to 85 Celsius - Fit for Fuel Level Gauge and Water Level Gauge - Sensor Length :150mm, 200mm, 250mm, 300 mm ,350 mm ,400mm, 450 mm - Mounting: 5 pieces of M5 screws and 2 mm thick gasket - Output signal: 0~190 ohm (Standard European), fit for water /Fuel Level Gauge: 0-190ohm - Fitment: for Gasoline, diesel, methanol fuel, ethanol fuel - the blue wire of sensor is connect the Ground line, - the brown wire of sensor is connect the gauge Tacho Sensor: - Signal: M16/M18 - Package: 1 X Sensor