Store and use radiosondes in accordance with applicable instructions, the User Guide, and specifications issued by Vaisala.
Keep radiosondes in their original packaging (unopened vacuum envelopes) in a dry, ventilated indoor storage space, and within the following key environmental limits (ref. IEC 60721-3-1 class 1K2):
- Temperature +5 °C … +40 °C
- Relative humidity below 85 %