ELING Waterproof 3 3/8" Digital Speedometer GPS Odometer Tripmeter Chrome Speedo Gauge for Car Motorcycle Truck Bike Boat 12V 24 Volt - EL0003

• UPC   790996372761
• Cut an 85mm (3 3/8") hole in the panel and allow a clearance of 70mm (2 3/4”) behind the panel to fit the gauge. Put the gauge in the hole. Using M4 nut and C type bracket to seal up the gauge. For the GPS antenna, you should securely fasten it in the flat position, black side upwards, preferably outside (or inside front windscreen) so that it has a clear view of the sky to pick up satellite signal. Connect the antenna cable to socket in the back of the gauge. And do not cut cable. It takes about 30 seconds to get signal in the first time, but less than 3 seconds after that. It gets quicker under a clear view of the sky. Sometimes if signal is missing, pls. reconnect all wires and restart it. It shows Current Speed, Trip Meter(return to 0 after power off), COG, ODO(cannot be reset), Press the back button to adjust unit(KM/H. MPH, KNOTS). Notes: Low speed readings (speeds 3 knots and under) not useful Red Backlight, 9-32VDC(12VDC/24VDC) Working Voltage, 100% Waterproof and anti-fogging protection