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"Thanks to the provided PDF documents with detailed instructions on how to connect the sensor to an Arduino UNO board, and the example script files demonstrating communication with the sensor, it was very easy to read-out the measured CO2 values. (My tech skills are limited.)"

CO2Meter, Inc. 105 Runway Drive, Ormond Beach, FL 32174  
Call us at (877) 678 - 4259 for immediate assistance. All Rights Reserved, CO2Meter, Inc. 2024 

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Experience and Quality

"Our purpose is to make sense of air by providing the best possible measurement solutions, service and intelligence.

With over 25 years of experience, Senseair has become the center of excellence in the field of non-dispersive infra-red (NDIR) technology. We develop and produce the smallest and most cost-efficient high-precision, low-power sensors for high-volume production. 

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K30 10% CO2 Sensor

Image of the ExplorIR-M CO2 Sensor

Accuracy: ± 300 ppm ± 3 % of measured value (up to 3% CO2)

Sample Method: NDIR (Diffusion)

Range: 0-100,000 ppm (0-10%)

Response Time: 20 seconds

Power Input: 4.5-14 VDC, stabilized to within 10% (external protection circuits required)

Communication: UART or I2C

This is a maintenance-free transmitter module intended to monitor high levels of CO2  found in storage tanks or biological applications. 

Recommended Sensors

Image of the SprintIR-6S 20% CO2 Smart Sensor

S8 Miniature 5% CO2 Sensor

Accuracy: ± 200ppm ± 10% of measured value

Sample Method: NDIR (Diffusion)

Range: 0-5% (0-50,000ppm)

Response Time: 90% at 2 minutes

Power Input: 4.5-5.25 VDC

Communication: UART Modbus

Thanks to a new optical path design, the S8 can accurately measure carbon dioxide levels up to 5%, yet it has less than a 30x20x10mm footprint and runs on only 30mA.


Senseair Sunrise 1% CO2 Sensor

Accuracy: ±30 ppm ± 3% of reading

Sample Method:  NDIR (Diffusion)

Range: 400-10,000 ppm

Response Time: 16 seconds

Power Input: 3.05-5.5 V4 

Communication: UART, I2C

A miniature sensor module giving full control over the sensor's integration into a host system, flexibility in changing of the CO2 measurement period, and power consumption.

Image of the CozIR Blink 2,000 ppm CO2 Sensor

Martin Ulrich | "Great product and support!" - K30 10% CO2 Sensor

Our Partnership 

CO2Meter and SenseAir have been in a valuable, long-term partnership.

SenseAir has a range of sensor technologies applicable in the automotive industry, indoor air quality, life sciences, and safety - all of which correlate directly with our mission at CO2Meter.

Nick Bos| "Works Great!" - S8 Miniature 5% CO2 Sensor

"After some help from support, the CO2 sensor started working and our experiments are running! Once everything was solved there were no issues whatsoever."

About Senseair


Benefits of Senseair 

Sensor Technologies

The S8 Miniature 5% CO2 Sensor is designed to act like a safety switch for alarm applications where CO2 leak detection is required.

By using this SenseAir Sensor you get:

A sensor designed with low-power applications in mind

Small Footprint

Automatic Background Calibration

Industry-Standard UART Communication

Gas Sensing Solutions (GSS) Logo


Indoor Air Quality (IAQ)

Featured Case Studies

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Whitepaper: Why Customers Choose the Senseair K30 CO2 Sensor

The Senseair K30 Modules are a customer favorite, due to their enhanced NDIR sensing technologies across a broad measurement range for applications like indoor air quality, modified atmosphere packaging, occupancy detection, process monitoring, laboratory, safety, and many others. Read More

Image of a man behind the wheel of a car.

How does an NDIR CO2 Sensor Work?

NDIR is an industry term for "nondispersive infrared", and is the most common type of sensor used to measure carbon dioxide, or CO2. An infrared (IR) lamp directs waves of light through a tube filled with a sample of air toward an optical filter in front of an IR light detector. Read More

Gas Sensor Applications

Gas sensors are critical for monitoring and detecting hazardous inert gases, and ensuring safety, air quality, or analyzing environments throughout many different industries.

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Senseair is a leading global provider of air and gas sensing technology. "Our purpose is to make sense of air by providing the best possible measurement solutions, service and intelligence. You will find our sensors and solutions in the fields of indoor and outdoor air quality, alcohol screening, gas alarms, life science, and transportation."

With over 25 years of experience, Senseair has become the center of excellence in the field of non-dispersive infra-red (NDIR) technology. We develop and produce the smallest and most cost-efficient high-precision, low-power sensors for high-volume production.

GSS Gas Sensing Solutions, Production


Life Sciences

The SprintIR-6S CO2 Sensor


S8 Miniature 5% CO2 Sensor