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 - Screen display varies among DST， MXS， AVS， and TM every 4 seconds Time display function， also can be used as a watch Wonderful gadget for traveling Easy to install， easy to read LCD display， ideal companion for your bicycle Effectively help you to track your progress and improve your stamina Power:1x 23A 12V Battery for Sensor transmitter (Not included)