Suunto D4I User Manual page 67

Display range: -20 °C to +50 °C (-4 °F to +122 °F)
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Accuracy: ± 2 °C (± 3.6 °F) within 20 minutes of temperature
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change
Nitrox mode
Oxygen: 21-50%
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Partial pressure of oxygen (pO2): 0.2 – 3.0
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Oxygen Limit Fraction: 0–200% with 1% resolution
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Gas mixtures: 1
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Other displays
Dive time: 0 to 999 min
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Surface time: 0 to 99 h 59 min
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Dive counter: 0 to 99 for repetitive dives
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No-decompression time: 0 to 99 min (-- after 99)
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Ascent time: 0 to 999 min (-- after 999)
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Ceiling depths: 3.0 to 150 m (10 to 492 ft)
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Calendar clock
Accuracy: ± 25 s/month (at 20 °C (68 °F))
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12/24 h display
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Stopwatch
Accuracy: 1 second
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Display range: 0'00 – 99'59
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Resolution: 1 second
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Logbook
Sample rate in air and nitrox modes: default 20 seconds
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Sample rate in free diving mode: default 2 seconds
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