Citizen CLP-6401 User Manual page 68

Item
Environment
･ Operating conditions:
Temperature:
Humidity:
･ Storage:
Temperature:
Humidity:
･ Ventilation:
Convective circulation.
(to prevent fire)
･ Dust:
Free from conductive or corrosive matter
Description
5-35°C (41-95°F)
30-80% (noncondensing)
-20-60°C (-4-140°F)
5-85%
Air vent must be away from wall etc
6-5