... , Acoustic, MTBF, and Environmental Range Dimensions (H x W x D)InchesCentimetersmeTough LE6.1 x 14.2 x 7.115.5 ... to +45ºC, up to 5,000 feet (1500 m)-5ºC to +40ºC, up to 10,000 ... feet (3000 m)Short-Term* Exceptional Conditions:-5ºC to +50ºC, ... up to 5,000 feet (1500 m)-5ºC to +45ºC, up to 10,000 ... feet (3000 m)-5ºC to +45ºC, at sea level with single ...