CM1106H-NS NDIR CO2 Sensor

CM1106H-NS NDIR CO2 Sensor
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The CM1106H-NS High Accuracy NDIR CO2 Sensor (CU-1106H-NS) is a low-cost, best selling sensor, designed to detect CO2 concentrations for indoor air applications such as ventilation control and monitoring in commercial or residential HVAC. 

This sensor also is designed to support WELL, RESET, ASHRAE 62.1 2019 Addendum aa & California Title 24 Applications.


  • NDIR technology with independent intellectual property
  • High accuracy and precise measurement
  • Temperature calibration within whole measurement range
  • Maintenance free - Automatic Baseline Calibration (ABC)
  • Temperature and Humidity Compensation Throughout the Entire Measurement Range
  • Long life span (15+ years) 
  • Small, Compact structure, easy to install


  • IAQ (Indoor Air Quality)
  • Ventilation Systems
  • Air Purification
  • HVAC
  • DCV (Demand Control Ventilation)
  • Automotive


  • CM1106H-NS High Accuracy NDIR CO2 Sensor - designed to monitor carbon dioxide levels and provide high quality solutions by a single light source and wavelength using NDIR technologies. 


  • Gas Type: CO2 (Carbon Dioxide)
  • Operating Principle: Non-dispersive infrared (NDIR)
  • CO2 Range: PWM (0-2000ppm), UART (0-10000ppm)
  • CO2 Accuracy: ± (30ppm+3% of reading) @ -10°C~50°C ,0-85%RH, UART/PWM 0-2000ppm
  • Response time: 30s
  • Working Temperature: -10°C~+50°C
  • Working Humidity: 0-95%RH (non condensing)
  • Storage Temperature: -30°C ~ 70°C
  • Storage Humidity: 0-95%RH (non-condensing)
  • Sampling Frequency: 1s
  • Time to First Reading: ≤30s
  • Power Supply: DC4.5V-5.5V
  • Ripple Wave: <50mV
  • Working Current: <50mA @ 1s
  • Signal output: UART-TTL, PWM, 
  • Dimensions: 33 x 19.7 x 8.9 mm
  • Weight: 5g
  • Lifespan: ≥15 years
  • Maintenance: Maintenance-free for normal indoor application with ABC


    • 90 days - See CO2Meter Terms and Conditions
    • Data Sheets

    • Manuals

    • Technical Documents

    • Videos

    • Additional Resources

    • Case Studies

    Customer Reviews

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

    - Phillip Farrar
    Water Plant Superintendent

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