Specification: Condition: Brand new Material: ABS  Color: As pictures shown Product Color: Black Power Supply Voltage: 12VDC Perimeter Settings:  Range: 50-22600 Acquiescence: 1871 Speed Pulse Number Setting: Range: 1-12 Acquiescence: 2 Speed Pulse Number Setting:Range: 2  4   2:166Hz=10x1000RPM  4:333Hz=10x1000RPM Acquiescence: 2 Fuel Sensor Setting: Range: 2 line:8-98 Ohm 3 line : 33-566 Ohm  Technical Requirements: 1.Press the button for three seconds on the ODO,and Metrics/inch switching. 2.Background Settings: hold down the button, switch on electricity, keep five seconds into the settings, and it will flash once enter in, short press to modify, and automatically moves to the following step with no operation, long press to the following position. The order is: girth - speed pulse - fuel.     Package List: 1 x Instrument 1 x Sensor 1 x Bracket 1 x Chinese and English Manual  2 x Magnet Note: 1. The factory speed parameter is 22.8Hz=65KM/h. The perimeter values not used in the background, backstage parameters are used only when the background is set. 2. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.