Reflecta CyberView X5 MF User Manual page 5

Operating Ambient Temperature Range
50º to 104ºF (10º to 40ºC)
Note: Do not turn on the scanner unless it is within this range. If the
scanner has been stored or transported outside of this range, allow it to
return to within this range before turning it on.
Operating Ambient Humidity Range 15% to 76% relative humidity
(non-condensing)
Note: If the scanner is stored or to be transported in cold temperature
and then brought into a warm / humid environment condensation
may occur.