Sunding SD-548C Cycle Computer China
SPD current speed, ODO odometer, DST trip distance, Max. speed, AVS average speed, TM elapsed time, CLK clock (12H/24H), scan, "+","-" comparator, setting speed scale (KM/M), setting tyre circumference (0~9999mm), setting the last value of odometer, freeze frame memory, auto on/off, wireless transmission