SD-546C wireless&back light bike computer

Manual: http://www.sunding.com/uploads/SuoMingShu/SD-546C-EN.pdf

1,AUTO WAKE UP(546C1)
MANUAL WAKE UP(546C2)
2,SPD   CURRENT SPEED
3, ODO   ODOMETER (0.001~99999km/m)
4, DST   TRIP DISTANCE
5, MXS   MAXIMUM SPEED
6,AVS    AVERAGE SPEED
7, TM    ELAPSED TIME
8, CLK   CLOCK (12H/24H)
9,TMP   TEMPERATURE(-10℃~70℃)
10,MIN PRM
11, MAX PRM
12, CAL(0~99999Kcal)
13, FAT(0~9999.9kg)
14, SCAN
15,  “+” “-” COMPARATOR
16, SETTING SPEED SCALE(km/h,m/h)
17, SETTING TYRE CIRCUMFERENCE :(0mm~9999mm)
18, SETTING THE LAST VALUE OF ODOMETER/ODO
19, SETTING RIDER’S WEIGHT
20,FREEZE FRAME MEMORY 
21, MAINTENANCE ALERT
22,LOW POWER REMINDING
23,BACK LIGHT
24,AUTO ON/OFF