Features:
16 main functions.
LCD screen display with backlight.
Rain resistant.
Easy installation， good durability.
Battery powered.
Easy to read LCD display， ideal companion for your riding.

Functions:
SDP: CURRENT SPEED
ODO: ODOMETER(0.001-99999km/m)
DST: TRIP DISTANCE
MXS: MAXIMUM SPEED
AVS: AVERAGE SPEED
TM: ELAPSED TIME
CLK: CLOCK (12H/24H)
SCAN
"+" "-" COMPAPATOR
SETTING SPEED SCALE: (km/h， m/h)
SETTING TYRE CIRCUMFERENCE: (0mm-9999mm)
SETTING THE LAST VALUE OF ODOMETER/ODO
FREEZE FRAME MEMORY
AUTO ON/OFF
SIGNAL INTERFERENCE-RESISTANCE
BACKLIGHT

Note: The backlight is only on when you press any button from 6pm to 8am.

Specifications:
Brand: Sunding
Model: SD-546C
Type: Wireless
Display: LCD with backlight
Material: Engineering plastics， electronic components
Color: Black
Power source: 1 * 3V CR2032 battery for computer ， 1 * 23A 12V alkaline battery for wireless transmitter
Product size: Approx. 4.6 * 4.6 * 2cm / 1.8 * 1.8 * 0.8in
Product weight: Approx. 24g / 0.86oz
Package size: Approx. 12 * 7 * 4cm / 4.7 * 2.8 * 1.6in
Package weight: Approx. 82g / 2.89oz

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