Dell Latitude 12 7212 Owner's Manual page 56

Feature Specifications
Temperature — -51°C to 71°C (-60°F to 160°F)
storage
Relative humidity 10% to 90% (non-condensing)
(maximum) —
operating
Relative humidity 5% to 95% (non-condensing)
(maximum) —
storage
Altitude (maximum) -16 m to 12192 m (-50 ft to 40000 ft)
— operating
Altitude (maximum) -15.20 m to 12192 m (-50 ft to 40,000 ft)
— nonoperating
Airborne G1 as defined by ISA-71.04–1985
contaminant level
56 System specifications