TS Korea — Underground Pit O₂ Monitoring with FIX800

Underground pits (pipe vaults, equipment basements, manholes) qualify as confined spaces—oxygen is the first measurement before any other gas.

Below ~18% O₂ workers feel dizzy; near 16% exertion becomes impossible; single-digit oxygen causes unconsciousness within minutes. Above ~23.5% enriched air increases fire risk.

We paired FIX800 with a FIX-DS board for continuous oxygen surveillance, beacon outputs, and remote visibility for supervisors.