M90 CO2 Monitor

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M90 CO2 Monitor

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This uniquely rugged and simple design by Envent Engineering utilizes dual-beam technology for accuracy and stability.



CO2 is measured routinely in natural gas for product quality and process control purposes. Common ranges are from 0–5% for sales gas and up to 0–30% for inlet CO2 concentration. Some H2S removal chemical processes can be fine-tuned by slip stream as much CO2 as possible to gain volume but not so much as to exceed pipeline tariff limits of typically 2–4%. CO2 is also a combustion byproduct and needs to be quantified.


  • True Dual-Beam Technology
  • Long-term stability
  • Low power consumption
  • Alarms
  • Backlit, 16-character, 2-line Display
  • 4-20 mA output