Feature 13 in 1 Multi Function Display: The gauge integrates speed, RPM, and fuel level monitoring into one device, offering a compact and efficient solution for boats, yachts, RVs, and trucks. 2Size: Cut a 111 mm (4-3/8in) diameter panel hole. You will need a minimum clearance of 55mm (2-3/16in) behind the panel to fit the gauge. Put the gauge in the hole and screw down. 3Antenna Installation: 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. Do not cut cable. 4High Precision Readings: With a speed range of 0-120 KM/H and tachometer range of 0-8000 RPM, this GPS speedometer tachometer delivers accurate performance tracking for all your needs. 5Clear Visibility: Featuring a red backlight, this GPS speedometer tachometer ensures easy readability in all conditions, making it a practical choice for day and night use.Item Type: GPSSpeedometerTachometerVoltage: DC 9-32VSpeedometer Range: 0-120 KM/HTachometer Range: 0-8000 RPMFuel Gauge: E 1/4 1/2 3/4 FBacklight Color: RedFitment: Fit for Motorhomes, Yachts, Trucks .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Speedometer1 x GPS Wiring Harness1 x User Manual