Radiosondes must be stored and used in accordance with applicable instructions, the User Guide, and specifications issued by Vaisala.
Radiosondes must be kept 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 to +40°C
- Relative humidity below 85%
| CAUTION The unwinder string is not resistant to prolonged exposure to sunlight. Store the unwinders in their original unopened packages. |