SUUNTO Stinger - Manual (Page 9)

7
WARNING
Set the correct Personal Adjustment Mode. Whenever it is believed that factors
that tend to increase the possibility of DCI exist, it is recommended that you use
this option to make the calculations more conservative. Failure to select the correct
Personal Adjustment Setting will result in erroneous dive and planning data.
WARNING
Freediving after scuba diving is not recommended. It is recommended to avoid
freediving for at least two hours and not to exceed five meters [16 ft] after scuba
diving depending on your diving activity. Suunto also recommends you to be
trained in freediving technique and physiology before conducting breath holding
dives. No dive computer can replace the need for proper dive training. Insufficient
or improper training may cause diver to commit errors that may lead to serious
injury or death.
NOTE:
Free mode automatically changes to Gauge mode when the dive time exceeds five
minutes for a single dive. If the Stinger is in Gauge mode it is not possible to set it
to Air or EAN modes until 48 hours have passed. This does not apply to changing
between Free and Air or EAN modes.
Changing from Air to EAN mode is possible at any time. Changing from EAN to
Air mode however requires you to wait until the no-flying time has counted down.