Description: Wired bicycle code meter With luminescence, it can be used at night. Wired code meter detection speed will be accurate. Ipx4 waterproof. High-quality chip, stable operation. It can also measure the temperature, control the approximate outside temperature, and Specifications: Product: wired bicycle code table Type: IC321 The length of induction line of code meter is about 80cm Power supply mode: button cell Endurance time: 6- : ABS colour: Black (Backlight random, 't accept the specified Backlight.) Package Contents: 1 x Bicycle Computer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.