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Galileo in APNEA Mode
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Technical Information


The APNEA mode gives Galileo the ability to track your depth and dive time on breath hold dives in much finer detail, using specific features for APNEA diving.  It also allows you to use the heart rate monitor to check your body's response and compare with your dive profile .


*After updating to firmware 1.6 then you will be able to activate the APNEA mode with the free key code.  Download your free code from here.

APNEA divers need specifically designed high-tech equipment for advanced training:

SCUBAPRO UWATEC appreciates the fact that in-depth extensive physical and mental training allows an APNEA diver to successfully adapt the body's breathing and functions to the underwater challenges undertaken.

The Galileo interval training alarms let the diver concentrate completely on controlling the autonomic nervous system, including the heart rate. All Galileos can be upgraded even models without the HRM feature.

With Galileo-the data and results together assist the APNEA diver to reach objectives, whatever the APNEA discipline practiced: competitive or recreational.

APNEA specific features and warnings allow the APNEA diver even more precision, so free diving can be enjoyed to its fullest.

Unique Galileo APNEA features--no one else has it:

  • Fast Sampling rates for depth measurement and data logging: 0, 25 seconds (4 times per second) for depth sampling and every second for data logging. These rates are faster than when in SCUBA or GAUGE modes, due to the different nature of APNEA diving (shorter dives and shorter time at maximum depth than scuba diving). This way, the APNEA diver doesn't miss his 'deepest depth.'
  • The heart rate monitor allows an APNEA diver the possibility to view their heart rate, attesting to their relaxation control efforts. A high heart rate means the diver consumes O2, which shortens the free dive, therefore the importance of monitoring the heart rate.
  • Galileo can be manually started in APNEA mode, when exact distance and time are crucial. Other dive computers rely on automatic activation when the computer starts its descent, but with APNEA the diver wants to start measuring from the very first 0,25 of a second and the very first centimeter. The diver may even want the heart rate on the surface--waiting for the ideal before starting the dive. Button activation is also perfect for distance use, where depth may not automatically activate the computer. If the computer is not started manually, it goes on automatically once the diver reaches 0.8m.

Other Galileo APNEA features:

  • Galileo APNEA in dive mode displays: current depth, maximum depth, heart rate, dive time in minutes and seconds, water temperature, ascent or descent speed.
  • Galileo APNEA in shallow water or surface mode displays: maximum depth of the previous dive, duration of previous dive, current heart rate, surface time, lowest heart rate during previous dive, lowest temperature during previous dive, total number of immersions during the current recording, total time elapsed since beginning of recording.
  • APNEA Specific alarms and warnings:
    Keep track without having to look at the display. All warnings are audible only and each sound unique:
    -Maximum Depth alarm: continuous alarm if descending below maximum, until ascending at least 0.5m (2ft) 
    shallower than set depth.
    -Depth Increment warning: allows diver to keep track of descent and ascent progress
    -Dive time interval warning: allows diver to keep track of time spent underwater
    -Surface interval warning: allows diver to keep track of time spent on surface
    -Low heart rate alarm: triggers an alarm if heart rate drops below a set level (available on Sol or with HRM
    upgrade only)
    -Ascent speed alarm: Ascent speed with APNEA mode is averaged over a 4 sec. period and alarm beeps
    continuously if diver ascent speed is higher than set value.
  • Adjust the water density in small increments, for the utmost precision in depth measurement.
    For the APNEA diver, the maximum depth reached may be the main goal of the dive, therefore the
    accuracy of the depth measurement is a very important factor. The salinity of the water effects the depth
    measurement and we assure you get the most accurate one possible.
  • Logbook is adapted for APNEA diving, listing in one session several dives, including:
    -deepest dive
    -longest dive
    -total duration of the session -total number of dives
    -lowest measured temperature.
  • Dive Profile: The heart rate monitor results are available, together with the depth profile. The details on every individual dive can be seen, with minimum, average and maximum heart rate, maximum descent and maximum ascent speeds.
  • Possible to Download dive to computer via Smart Trak.
    At the end of your diving session, check out all the dive data including time, depth and heart rate. These statistics are displayed also using a visual graphics making training results obvious.


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