033-8-0007 K33 ELG 10,000ppm CO2 + RH/T Data Logging Sensor

033-8-0007 K33 ELG 10,000ppm CO2 + RH/T Data Logging Sensor l CO2Meter (SE-0020)
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The 033-8-0007 K33 ELG CO2 Data Logging Sensor (formerly known as SE-0020) is designed to monitor up to 1% CO2, Temperature and %RH. This sensor is ideal for low power applications where keeping power consumption at minimum is vital.


  • Measures up to 10,000ppm CO2
  • Built-in Memory for Data Logging
  • Multiple Industry standard I/O options
  • Individually calibrated for high performance


  • 033-8-0007 K33 ELG 1% CO2 Sensor Only - for integration into high-volume OEM products. Contact us directly for wholesale pricing on large quantities of this sensor.
  • CM-0026 K33 ELG 1% CO2 Sensor Development Kit - Easy to use, simply plug the sensor module into your PC via USB. Use it for evaluation, rapid application development or for experiments. The Devkit includes a K33 ELG sensor with pre-soldered connectors that provide power and connectivity. UART to USB Bridge cable, universal power supply and AA battery pack included. Uses our free GasLab® software to measure and graph carbon dioxide, to configure the sensor or for data logging.


  • CO2 Measurement: Non-dispersive infrared (NDIR)
  • Measurement Range: 0 – 10,000 ppm
  • Rate of Measurement: every 20 seconds
  • Response time: 30 seconds
  • Warm up time: < 1 min. (@ full specs < 15 min)
  • Accuracy: ± 30ppm ± 3% of measured value
  • Temperature Range: -40 to 60C
  • Temperature Accuracy: ± 0.4C at 25C
  • Relative Humidity Range: 0-100% RH non condensing
  • Relative Humidity Accuracy: ± 3% RH
  • Measurement Method: diffusion
  • Available Output: Analog
  • Communication options: UART and I2C
  • Data logging: 30 seconds to 18 hours sample interval for CO2, RH & T
  • Optional: Support for real-time measurement with software
  • Memory: 5,400 log entries maximum, includes timestamp, co2, temp, RH. 1 additional analog input to the log available
  • Maintenance Interval: no maintenance required
  • Current Firmware: 510-00103 rev 0.04 
  • Dimensions: 2.0 × 2.25 × 0.5 inches
  • Sensor Life Expectancy: >15 years

Electrical / Mechanical

  • Power Input: 6-14 VDC max rating, stabilized to within 10%
  • Max Current: 250 mA
  • Current Consumption: 40 mA average

Development Kit

  • 6’ (1.8m) USB -UART bridge cable (non-standard)
  • 6VDC universal wall power supply with connector for sensor 120/240 VAC 50/60 Hz
  • 4x AA battery pack w/ connector for sensor 


  • 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 free to use with our products.

Download Latest Software Here



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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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