EnGenius EWS660AP User Manual page 11

Physical/Environment Conditions:
Operating:
Temperature: -4 °F~131 °F (-20 °C~55 °C)
Humidity (non-condensing): 90% or less
Storage:
Temperature: -22 °F~176 °F (-30 °C~80 °C)
Humidity (non-condensing): 90% or less