SelfSync

Dive gas message

Dive gas messages describe the breathing gases configured for a dive: air, nitrox or trimix, as oxygen and helium percentages.

FIT name
dive_gas
Global message number
259
JavaScript SDK key
diveGasMesgs
Fields
6

Fields

  • messageIndexString

    Index of the message among the messages of the same kind in the file, starting at 0. Other messages use it to reference this one.

  • heliumContentUint8percent

    Percentage of helium in the gas.

  • oxygenContentUint8percent

    Percentage of oxygen in the gas.

  • statusEnum

    Whether the gas is enabled, disabled or for backup only.

    3 possible values
    • disabled
    • enabled
    • backupOnly
  • modeEnum

    How the gas is used: open circuit, or as a diluent in closed circuit (rebreather).

    2 possible values
    • openCircuit
    • closedCircuitDiluent
  • mesgNumString

    Global message number identifying the kind of message. Decoders use it to know which profile to apply to the data.

Other diving messages

See all the FIT messages