ELING Guaranteed Waterproof GPS Speedometer Odometer Auto Gauge 200KM/H Car Motorcycle Car Backlit 85mm /24V

First, drill a hole of 3.3 inches (85 mm) in diameter, 2.8 inches (70 mm) deep, then insert the gauge and fix it Three wires are connected (power, ground wire, backlight) Our speedometer connects directly to the GPS sensor and does not require any other sensor cables. The location to install the sensor is not specified, but it is also a recommended place on the dashboard. And we think that the roof of your car is not able to move too much due to bad weather The first reception takes about 30 seconds, but the reception will be almost 3 seconds. On sunny days, reception is probably fast. If the signal used disappears, please connect the wire again and reset it Although SOG (current speed) and ODOs cannot be resetted, it has no mileage and COG (direction of movement). If you want the performance of a trip meter, then we recommend the following products: (ASIN: B07KRTM925, B07KRT7YJ6, B07KJGBJXK, B07KR1M7TJ) Red backlight, Operating voltage: DC current 9-32VDC(12VDC/24VDC), 100% waterproof and anti-fog protection

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