52mm Digital GPS Speedometer LCD Speed Gauge Odometer KMH MPH Mileage Trip Counter For Auto Motorcycle Boat 12V 24V Universal 52mm 2'' Marine Boat Car GPS Speedometer 0~999 MPH Km/h Knots Display Gauge with Oil Pressure & Fuel Level Alarm 9-32V Specification: [1]. Fuel Alarm , Oil Pressure Alarm, Malfunction Alarm [2]. GPS Blind Area Odometer Compensation [3]. OverSpeed Buzzer Alarm [4]. Operation Mode: LCD display, stepper motor [5]. Speedometer Support Universal Car ,Boat,yacht,truak Wire Connection: 1.Red Wire --Positive (+) 2.Blue Wire--Negative(-) 3.Orange Wire --Neutral 4.Black Wire--High Beam 5.Purple Wire --Right Direction Light 6.White Wire ---Left Direction Light 7.Yellow Wire --Fuel Alarm 8.Grey Wire --Oil Pressure Alarm 9.Green Wire --Malfunction Feature: * Fixing Dimension: 52mm * Trip Counter * Backlight:Red * Working Voltage: 9~32 V DC * Operating Current:60mA * Operating Temperature:-30 to +75 * Storage Temperature:-40 to +85 * Indicating Range: 0~999 (MPH, Knots, Km/h adjustable) * You can switch unit between MPH(Mi), Knots(NMI) and Km/h (KM) by Backside Button * Mileage Range: 0~99999.9 (Mi,NMI,KM available) Instrustion: 1. Cut an 52mm (2-1/16") hole in the panel (II) and allow a clearance of 55mm (2 3/16") behind the panel to fit the gauge. 2. Remove fastening ring (I), insert gauge through panel from the front. Tighten gauge (III) using fastening ring (I)from the rear. 3. Connect cables according to the diagram/label. 4. Connect GPS Antenna to the socket in the back of the gauge and put it in the good position pointing the sky directly. 5. After turning on the power, allow the gauge to search for satellite signal for 1 minute. The gauge will show speed in knots/km/mph. Function Select: "ODO","BUZZ" , "UNIT" Firstly, please use External Button or use a pin to press the internal button through the back hole. Press and hold on the button, then turn on the power supply. The LCD will show ODO, BUZZ, etc. You can select the function after releasing the button. Package: 1x GPS speedometer 1x GPS Speed Sensor 1x Multi-plug socket 1x Installation Instruction Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2cm differences due to manual measurement.