Senseair's compact, high accuracy, low power consumption NDIR type CO2 sensors and AKM's CO2 sensor components


Senseair AB, a member of the Asahi Kasei Microdevices (AKM) Group, creates non-dispersive infrared (NDIR) type CO2 sensors that are compact yet highly accurate and which consume so little power that they can be powered by batteries. Concerns about the spread of disease has led to indoor ventilation becoming even more important. These CO2 sensors are suitable for use in portable products for monitoring air quality in classrooms, office buildings, and stores, and other spaces.

In addition, energy savings and comfortable environments can be realized in sealed indoor environments such as high-rise office buildings by controlling air conditioning ventilation systems while measuring CO2 concentrations. In automotive applications, air conditioner workloads can be reduced by optimally controlling ventilation flow while measuring the CO2 concentration of the car cabin. This improves fuel efficiency while reducing power consumption.

AKM also manufactures and sells components used in NDIR type CO2 sensors (infrared LEDs , infrared sensors, and analog front-end (AFE) IC with built-in infrared LED drivers). The infrared detectors are high-sensitivity, fast response, and compact. They are also equipped with optical filters that selectively transmit only the infrared absorption spectrum band of the gas to be detected.


What are CO2 sensors?

  • ANSI*/ASHRAE Standard 62.1-2022 and the Evolution of CO2 Sensor Technology
  • What is CO2?
  • Gas Sensors types and mechanism
  • What is NDIR (Non Dispersive InfraRed) ?

What makes Senseair different ?

Why have we been able to lead the industry for so many years?

  • Enables low power battery operation
  • High accuracy even in compact


Introduction of application cases utilizing CO2 sensors

  • Visualizing air-stagnation by using CO2 sensor
  • For the Safety and Security of Children
  • Indoor Air Quality (IAQ) by CO2 Monitoring
  • CO2 Monitoring in real-life house
  • CO2 Monitoring in indoor space
  • Customer stories


  • Sensor Core (Senseair)
  • Sensor inCase (Senseair)
  • Sensor Element

Customer stories

  • Airthings
  • Elsys
  • SAF Tehnika
SAF tehnika

About Senseair

Senseair, which became a member of the Asahi Kasei Microdevices (AKM) Group in 2018, is a provider of gas sensors using NDIR: Non-Dispersive InfraRed technology. Our goal is to constantly develop and mass-produce new gas sensor technologies.