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S8 Miniature 10,000ppm CO2 Sensor

S8 Miniature 10,000ppm CO2 Sensor - CO2 Meter
Regular price $46.00 Sale price

Compare at $99.00

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The S8 Miniature 10,000ppm (1%) Sensor module is designed to be used as a safety switch for indoor control and alarm applications like portable heaters or fresh air ventilation in cars. It is a leader in the next generation of small size, low power, NDIR ambient air CO2 sensors.


  • Low Power, Small Footprint Design
  • Automatic Background Calibration
  • Industry-Standard UART Communication


SE-0119 S8 10,000ppm CO2 Sensor Only - pinless design for integration into high-volume OEM products.Contact us directly for wholesale pricing on large quantities of this sensor.

CM-0177 S8 CO2 Sensor Development Kit - Easy to use, simply plug the sensor module into your PC via USB. Use 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 Method: diffusion
  • Measurement Range: (0-10,000 ppm)
  • Response time: 90% at 2 minutes
  • Measurement Interval: 0.5 Hz (every 2 seconds)
  • CO2 Accuracy: ± 70ppm ± 3% of measured value
  • Communication Options: UART Modbus
  • Available Output: analog
  • Sensor Life Expectancy: > 15 years
  • Maintenance Interval: no maintenance required
  • Self-Diagnostics: complete function check on startup

Electrical / Mechanical

  • Dimensions: 32.7 × 19.7 × 8 mm (LxWxH)  < 8 grams.
  • Power Input: 4.5-5.25 VDC
  • Max Current: 300 mA
  • Power Consumption: 300mA peak, 30mA average


  • 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


  • Data Sheets

  • Manuals

  • Technical Documents

  • Videos

  • Additional Resources

  • Case Studies

Customer Reviews

Based on 3 reviews
Berne Stober
Works great with RPi3B+

Had no problems with software or getting hardware to work with GPIO on RPi3B+. Will have to solder connections to sensor though.

Lauri Jalkanen
Miniature CO2 sensor, paid

We have not received the item, pleas give the freight code etc that I can seek it, I badly need that, the product development of the proto is staying now

Lex Lindsey
Timeout problems

I followed the Python example code, but translated it into Ruby. The S8 tended to start timing out on reads after running for a few hours. I upped the timeout parameter to 1 second from a half second and still had timeouts. Also made sure to sleep for a half sec after sending read request, and slept for a couple of seconds between read requests. Flushing input as well.

I am running it USB from a Raspberry Pi Zero. I have had no problems with this same configuration with the Cozir sensor.

Also, the Python example in the application note sends a command of 0x44, whereas the Senseair Modbus document shows 0x04 as the read register command. I tried that and it timed out every time, whereas with 0x44 at least it read for a couple of hours.

Puzzling. I could not recommend this unit as it stands.

"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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