HP E2416B User Manual page 60

Reference
Operating characteristics of the analysis probe
Operating Characteristics
This product is intended for indoor use only.
Operating
Environmental
Non-operating
Temperature
Operating
Altitude
Non-operating
Up to 90% noncondensing. Avoid sudden, extreme temperature
Humidity
changes which could cause condensation within the instrument.
4-4
0 to 55 degrees C (+32 to +131 degrees F)
-40 to +75 degrees C (-40 to +167 degrees F)
4,600 m (15,000 ft.)
15,300 m (50,000 ft.)
HP E2416B 80196 Analysis Probe