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ExplorIR®-M 5% CO2 Sensor

ExplorIR®-M 5% CO2 Sensor - CO2Meter
Regular price $179.00 Sale price

Compare at $229.00

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The ExplorIR®-M-5 (formerly known as MinIR-GC-0024) CO2 sensor is a solid state, low power consumption module ideal for gas monitoring and detection alarm systems. Combined with the MX board, it provides full-featured capability for industrial, scientific, engineering or OEM applications.


  • Measures up to 5% CO2
  • Includes barometric pressure, % relative humidity, temperature sensors
  • Serial UART, analog output
  • Easy integration: compact & low power


  • ExplorIR®-M-5 Sensor Only – for integration into high-volume OEM products.
  • CM-40330 MX Board – Same functionality as the development kit without USB cable or software.
  • CM-40331 Development Kit – Easy to use, simply plug the MX Board into your PC via the included serial UART to USB cable. Use our free GasLab® software to measure and graph carbon dioxide, barometric pressure, temperature, and % relative humidity. 


  • CO2 Sensing Method: Non-dispersive infrared (NDIR) absorption
  • Sample Method: Solid-state LED NDIR Diffusion
  • Measurement Range: 0-5%
  • Accuracy: ±70 ppm +/- 5% of reading @ STP
  • Time to 1st Reading: <1.2 seconds
  • Resolution: 10ppm
  • Non Linearity: < 1% of FS
  • Operating Pressure Range: 950 mbar to 10 bar
    • external pressure calibration
  • Pressure Dependence: 0.1% of reading per mbar @STP
  • Warm-up Time: < 10s. 1.2 secs to first reading
  • Response Time: <30 Seconds (Diffusion Limited)
  • Readings per Second: 2
  • Operating Temperature: 0°C to 50°C
  • Operating Humidity: 0 to 95% RH, non-condensing
  • Storage Temperature: -40°C to +70°C
  • Dimensions: 20.9 mm x 21.7 mm
  • Weight: 4g sensor
  • Sensor Life Expectancy: >15 years

Electrical / Mechanical

  • Power Input: 3.25V to 5.5V
  • Peak Current: 33mA @ 2 readings/sec.
  • Average Current: <1.5mA
  • Power Consumption: 3.5mW @ 3.3V
  • Measurement Output/Interface: UART (Serial)


  • 90 days - See CO2Meter Terms and Conditions. 

Free Easy-to-use GasLab® Software

This device uses GasLab® software for setup, calibration, data logging, and real-time data analysis. GasLab® makes it easy to export data into a .CSV file that can be imported into any industry-standard software or spreadsheet. GasLab® runs on Windows XP or higher, and is free to use with our products.

Download Latest Software Here


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.

Tube cap adapters easily convert 20mm standard gas sensors from diffusion to sampling sensors and add the ability to measure barometric pressure, temperature and % relative humidity from the gas sample. Molded polymer. Tube cap adapters are not pre-installed. For accurate results you must mount the tube cap permanently.

Micro-Pump Kit includes all the tools you need to utilize the tube-cap adapters as part of a sampling sensor system.

Nafion Tubing is a highly selective, semi-permeable membrane to water vapor. If gases inside Nafion tubing are wetter than gases surrounding the tubing, drying will occur. If the surrounding gases are wetter, humidification will occur.

Micro Gas Sampling Pumps provide a constant flow of air across the sensor with a tube cap - perfect for bench-top testing of sensors for closed-loop sampling applications.

Probe Enclosure for Development Kits gives a strong and secure container to mount the sensor. Hydrophobic filters available for enclosure for outdoor use.

  • Data Sheets

  • Manuals

  • Technical Documents

  • Videos

  • Additional Resources

  • Case Studies

Customer Reviews

Based on 2 reviews
Erik VdBroeck
perfect product, as usual

Speed, precision, economic, all reunited in this small sensor.

George Delaportas

MinIR 5% CO2 Smart LED Sensor

"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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