HP iPAQ hw6500 Unlocked Mobile Messenger series - Manual (Page 169)

Specifications C–4
Operating Environment
Environment
US Metric
Temperature Operating 32° to 104° F 0° to 40° C
Nonoperating -4° to 140° F -20° to 60° C
Relative Humidity Operating up to 90% up to 90%
Nonoperating up to 90% up to 90%
Maximum Altitude Operating 15,000 ft 4,572 m
Nonoperating 40,000 ft 12,192 m