Feature: - Working voltage: DC9V-36V, - Measuring range: 0M-160M, - Measurement accuracy: 1M - Working environment temperature: -20 C - -50 C, - Working environment humidity: 45% - 75% RH - Measuring range: speed 0-160km/h - Mileage: 0-999999.9km - Overspeed alarm: driving speed set value - Overspeed alarm factory value: 80km / h - When overspeeding, the upper right corner alarm displays a prompt, no sound prompt - Magnetic pole pairs: factory value is "8" - Speed ratio: the factory value is 1:624 - Measurement accuracy: 0.1% Installation and use: The black wire is connected to the positive pole of the power supply (+), the black and white wire is connected to the negative pole of the power supply (-), and the odometer senses three wires: the red wire is connected to the + on the sensor, the black wire is connected to the - on the sensor, and the yellow wire is connected to the G.X.S on the sensor. The operation is as follows: - First, start the car. - Second, short press for 1 second, the mileage shows ODO and TIPA rotation, select ODO. - Third, press and hold for 10 seconds to 15 seconds to display the mobile phone number. - Fourth, when the vehicle starts and exercises to 60 yards, press 1 second to display 000000 to enter the setting function. Press 2 seconds, the setting is completed. Package: 1 x Car LCD 2 in 1 Gauge ( no sensor )