Previdnost pred uporabo merilnika nivoja decibelov hrupa Db

Previdnost pred uporabo merilnika nivoja decibelov hrupa Db:

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. Delovni pogoji okolja: vlažnost manjša ali enaka 80 odstotka relativne vlažnosti, temperatura od 0 do 40 stopinj.