Cautions before using Noise Db Decibels Level meter:
1.Do not operate the unit at high temperature and Humidity environment.
2.Please take out battery from unit if not in use for any extended period of time.
3.Once using the unit in the presence of wind ,it is a must to mount the windscreen to not pick up undesired signals.
4.Operating Environmental conditon: Humidity≤80%RH, Temperature from 0 to 40℃.
