Dell S2418HN User Manual page 12

Environmental Characteristics
Temperature
Operating
Non-operating
Humidity
Operating
Non-operating
Altitude
Operating
Non-operating
Thermal dissipation
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12
0°C to 40°C (32°F to 104°F)
–20°C to 60°C (–4°F to 140°F)
10% to 80% (non-condensing)
5% to 90% (non-condensing)
5,000 m (16,404 ft) (maximum)
12,192 m (40,000 ft) (maximum)
95.6 BTU/hour (maximum)
68.3 BTU/hour (typical)