Direction on data recording: Each group includes one wind velocity value and one wind temperature value The anemometer can record 999 groups of data at most. The recorded data can be read if the APP. Wind velocity unit is m/s, wind temperature unit is Auto power off function blocking: In case of data recording, Bluetooth radio or APP connection, the auto power off function will be blocked High or low wind speed alarm: When the wind speed is above a high value or below the low value of the value, the HI or LO icon will flash. The alarm value of high and low wind speed can be set via the APP Wind chill indication: During measurement, if the wind temperature is below 0 , the wind chill icon will light on the SNGood quality product