with 2.8-inch large screen can measures temperature and speed. Easy to read LCD display with large screen, also has backlight, you can see the data clearly. Easy to control, and easy to install firmly with mounting accessories. Perfect to use when hiking, riding and other outdoor actives. You can have a try.

Specifications:
Name: Bicycle Odometer
Type: A, A-wireless, B, B-wireless, C (optional)
Backlight color: Green
Waterproof: Yes
Battery: 1 * CR2032 Button Battery(wired type), 2 * CR2032 Button Battery(wireless type) 3.0V, 240mAh (included)
Item size: 75 * 50mm / 2.95 * 1.97in
Package size: 110 * 70 * 60mm / 4.33 * 2.76 * 2.36in
Package weight:
A: 129g / 4.55ounce
A-wireless: 139g / 4.90ounce
B: 105g / 3.70ounce
B-wireless: 112g / 3.95ounce
C: 139g / 4.90ounce

Packing List(A):
1 * Bicycle Odometer
1 * CR2032 Battery
1 * Magnet
1 * Extension Mount
1 * Sticker
2 * Ties
1 * Binding
1 * Manual
OR
Packing List(A-wireless):
1 * Bicycle Odometer
2 * CR2032 Battery
1 * Magnet
1 * Sensor
1 * Extension Mount
1 * Stickers
2 * Ties
1 * Binding
1 * Manual
OR
Packing List(B):
1 * Bicycle Odometer
1 * CR2032 Battery
1 * Magnet
1 * Extension Mount
1 * Sticker
2 * Ties
1 * Binding
1 * Manual
OR
Packing List(B-wireless):
1 * Bicycle Odometer
2 * CR2032 Battery
1 * Magnet
1 * Sensor
1 * Extension Mount
1 * Stickers
2 * Ties
1 * Binding
1 * Manual
OR
Packing List(C-wireless):
1 * Bicycle Odometer
2 * CR2032 Battery
1 * Magnet
1 * Sensor
1 * Extension Mount
1 * Stickers
2 * Ties
1 * Binding
1 * Manual