Wired Bike Computer Waterproof Bicycle Odometer Multi Functional LCD Screen Cycling Speedometer Mountain Bike Speed Meter with Green Backlight
This wired bicycle computer with backlight is good companion for your riding, it not only shows the current speed, odometer, trip distance, but also shows the average speed, maximum speed and so on. It is really an ideal assistant for bicycle training.

Features:
Wired bicycle speedometer, includes all vital functions for novices and pros alike.
Big four-line backlit LCD display allows you to read the data clearly at any time and any angle.
Durable and waterproof for use in all conditions.
Easy installation, no tools required.
Powered by CR2032 battery,longer life and lower power consumption.
Freeze frame memory design which is particularly useful when crossing the finish line.
Auto power off and auto/manual wake up are all available,  quite convenient to use.
Ideal assistant for bicycle training.
Functions:
SPD: Current Speed
ODO: Odometer
DST: Trip Distance
MXS: Maximum Speed
AVS: Average Speed
TTM: Total Trip Time
TM: Trip Time
RAT: Riding All Time
CLK: Clock (12H/ 24H)
SW: Stopwatch
Temperature
TM UP: Trip Time Up
TM DOWN: Trip Time Down
TRIP UP: Trip Distance Up
TRIP DN: Trip Distance Down
Sleep Mode
Comparator
Maintenance Alert
Machine Oil Reminder
Over-speed Reminder
Setting Type Circumference
Low Battery Indicator
Auto Backlight
Freeze Frame Memory
Auto ON/ OFF

Specifications:
Material: ABS
Color: Black
Dimensions: 5.7 * 4.1 * 2 cm / 2.2 * 1.6 * 0.8 in
LCD Screen: 3 * 3.3 cm / 1.2 * 1.3 in
Package size: 14 * 7 * 4 cm / 5.5 * 2.8 * 1.6 in
Package weight: 80 g / 2.8 oz

Package List: 
1 * LCD Bicycle Computer
1 * Magnet
1 * Mounting Shoe + Sensor
1 * Set of Cable Ties
1 * User Manual (English)