An integrated compact subsea sensor designed to measure CH₄ and CO₂ simultaneously in a single housing, this system is rated for water depths up to 6,000 m and is well suited for deep-sea deployment and long-term environmental monitoring. Using TDLAS for CH₄ and NDIR for CO₂, it provides high sensitivity, excellent selectivity, and reliable in-situ measurement performance. The sensor features a robust TOUGH membrane for long-term stability, offering CH₄ detection below 1 µatm and CO₂ accuracy of ±0.5% of reading. It can be easily integrated into ROVs, AUVs, moorings, observatories, and landers for CCS and marine greenhouse gas monitoring applications.
