High Altitude Slate

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High Altitude Dive Slate SCUBA diving at altitude requires accounting for the reduced atmospheric pressure. Many dive computers do this automatically. However, if diving at altitud e and planning a dive via dive tables, the diver would use the adjusted theoretical depth from the Altitude Slate to plan the dive using sea level tables. Even when using a dive computer that adjusts for altitude, the Altitude Slate is beneficial for general diver's knowledge Theoretical Depth at Altitude Chart: 1000 increments from 1k to 10k Actual Depth in 10' increments: from 10' to 130' Theoretical Safety / Emergency Decompression Stop Depth Chart DAN Emergency Phone Number Show more