Download NiTek X Dive Computer User Guide

Using the NiTek X
(3) O2 OLI bar graph: This indicates CNS toxicity level at the
end of the dive. This drops as your surface interval time
increases.
(4) PGT exposure bar graph: This is the amount of residual
nitrogen and helium in your body at the end of the dive. This
drops as your surface interval time increases.
WARNING: It is recommended that you wait at least 24-hours
following any dive before flying in an aircraft or driving to
altitude. Failure to allow sufficient surface interval time before
doing so may increase your risk of decompression illness (DCI).
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NiTek X Dive Computer User Manual V1.0