CO2 sensor

CO₂sensor is a product with long-term stability and high measurement accuracy that promises to improve maintainability through an automatic calibration feature based on a unique calibration curve algorithm and a dual wavelength (for measurement and reference) NDIR*1 system.

For agricultural applications, it can be installed in greenhouses or plant factories to monitor the carbon dioxide concentration to help increase plant yields by supplying the carbon dioxide (CO2 application) required for photosynthesis.

In a BEMS^*2 application, install the CO2 sensor in building ventilation ducts to ventilate the air when needed by monitoring the carbon dioxide concentration, therefore contributing to overall building energy conservation.

Going forward, the output interfaces will be expanded to improve compatibility with various control systems.

*1NDIR: Non-Dispersive Infrared
*2BEMS: Building Energy Management System
System which uses a computer to comprehensively manage ventilation, electrical, plumbing, disaster prevention, crime prevention, and other pieces of equipment. Helps improve indoor environments and promote energy conservation.

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on Murata CO₂sensors

CO2 sensor

Product Lineup
CO₂ sensor application examples
Problems with CO₂ concentration control and Murata’s advantages
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Product Lineup

CO₂ sensor application examples

Developed for smart agriculture and building ventilation control applications which require CO₂ sensors with superior long-term stability.

CO₂ sensors for greenhouses and smart agriculture applications

Used in greenhouses and plant factories for the purpose of promoting photosynthesis and increasing yields by controlling the CO₂ concentration.

CO₂ sensors for measuring room atmosphere and for building ventilarion control in BEMS applications

Used for the purpose of contributing to energy savings through ventilation control corresponding to CO₂ concentrations.
(Measurement criteria for air quality: CO₂ concentration of 1,000 ppm)

Problems with CO₂ concentration control and Murata’s advantages

Murata’s CO₂ sensors can be applied to various problems in CO₂ concentration control.

Problems with agriculture and greenhouse

Measurement value fluctuations due to the impact of humidity and aging degradation
Yield decrease when the measurement value is higher than the true value
Energy (energy cost) loss when the measurement value is lower than the true value
Manually calibrated CO₂ sensors must be removed and taken out of the housing

Problems with measuring room atmosphere and for building ventilarion control in BEMS

Measurement value fluctuation due to aging degradation
CO₂ concentration control criteria according to the Building Management Law (1,000 ppm)
Ventilation energy loss due to settings which assume drift
CO₂ sensors are installed in high places and other locations which are difficult to access. This makes the calibration work difficult because calibration requires reference gases

Murata’s strengths in CO₂ sensors

Maintenance-free design achieves long-term stability through our unique algorithm and structure (Ex: approximately ten years for building ventilation *Depends on the usage environment)
In addition to modular products for system embedding, our lineup includes models equipped with cases and cables for agricultural use which are easy to install
Models which are attached to building ventilation ducts are easy to replace
Equipped with a built-in surge protection power circuit

Technical description of CO₂ sensors