🚚 Free Ground Shipping in the U.S. - Online Orders Over $100 ⏱ Next Day Delivery Before 2PM Available 📦

CM1109 Dual IR Source NDIR CO2 Sensor

CM1109 Dual IR Source NDIR CO2 Sensor l CO2Meter
Regular price $45.00

POs or wholesale quantity discounts click here

The CM1109 Dual IR Source NDIR CO2 Sensor is designed to measure high concentrations of CO2 (up to 5%) for safety, beverage, agriculture, industrial or cold chain storage applications.


  • Superior Stability & Accuracy
  • Temperature and Humidity Compensation 
  • High Accuracy Supports WELL, RESET, ASHRAE 62.1-2019 Addendum aa & California Title 24 Application


  • Indoor Air Quality (IAQ)
  • HVAC controller
  • Central Air Conditioner
  • Modified Atmospheric Packaging (MAP)
  • Agriculture


  • CM1109 - Dual IR Source NDIR CO2 Sensor -  designed to measure high concentrations of CO2 (up to 5% volume in air) for safety alarm applications

Model CM1109

  • Target gas: Carbon Dioxide (CO2)
  • Operating principle: Non-dispersive infrared (NDIR)
  • Measurement range: 0-5,000ppm
  • Accuracy: ± (50ppm+3% of reading) @ 0°C ~ 50°C , 50±10%RH
  • Working Humidity: 0-95%RH (non-condensing)
  • Storage Temperature: -30°C ~ 70°C
  • Storage Humidity: 0-95%RH (non-condensing)
  • Sampling frequency: 2s
  • Time to first reading: ≤30s
  • Power supply: 4.5V-5.5 VDC
  • Supply current: <50mA
  • Communication Interfaces: UART and I²C
  • Life span: >10 years


      • 90 days - See CO2Meter Terms and Conditions


      Gas Sensor Development Kit -  designed to seamlessly integrate with CO2Meter select gas sensors and provides customers with built-in pins for an easy drop-in solution. Also includes our free Gaslab data logging software.

      • Data Sheets

      • Manuals

      • Technical Documents

      • Videos

      • Additional Resources

      • Case Studies

      Customer Reviews

      Be the first to write a review

      "Easy to install, easy to set up, and easy calibration - just what I was looking for."

      - Phillip Farrar
      Water Plant Superintendent

      Read More Reviews...