Attributes . All models: Storage: -40 to +185° F (-40 to +85° C); Standard models: Operating: 32 to 104° F (0 to 40° C); Hardened models: Long-term operating: -13 to +140° F (-25 to +60° C), Short-term operating: -40 to +185° F (-40 to 85° C), Cold start to -4° F (-20° C); Extreme models: Long-term operating: -40 to +167° F (-40 to +75° C), Short-term operating: -58 to +212° F (-50 to +100° C), Cold start to -40° F (-40° C) . Names