Infrared Gas Sensors utilize only part of the infrared spectrum, corresponding to wavelengths which are absorbed by the gas to be detected. The optical bandwidth of a laser source is sufficiently narrow for it to be used directly, but with wideband sources such as thermal sources or even LED’s some additional wavelength selection in the optical path is required to achieve usable sensitivity and selectivity. The optical bandwidth of a sensor should ideally be matched to the absorption band of the gas (matching system bandwidth to the information carrying bandwidth) which is typically in the tens or low hundreds of nanometers.
Wavelength selection can be achieved using prisms or diffraction gratings, these being termed dispersive systems since they separate wavelengths spatially. Alternatively, a non-dispersive element may be used such as a multilayer thin film filter.
Nowadays commercial single gas IR gas sensors, as opposed to analytical instruments, are all based on NDIR techniques.
Technology innovation, primarily due to enhanced manufacturing processes and embedded electronics is expected to drive the gas sensors market. For example, in the industry sector, hazardous emissions has led to the framing of legislations for emission control and created the need to monitor its concentration. Whilst in manufacturing plants related to flammable gas, fire detection and combustible gas concentration need to be measured to guarantee worker’s safety. As consumer electronics became more common in people’s life, portable devices employed to collect environment air data are more seemingly to be purchased by individuals who are aware of healthy problems and IR gas sensors are on the essential list of a HVAC system configuration.

Market Analysis and Insights: Global Infrared Gas Sensor Market
The global Infrared Gas Sensor market was valued at US$ 467.9 in 2020 and will reach US$ 585.2 million by the end of 2027, growing at a CAGR of 3.8% during 2022-2027.

Global Infrared Gas Sensor Scope and Market Size
The global Infrared Gas Sensor market is segmented by company, region (country), by Type, and by Application. Players, stakeholders, and other participants in the global Infrared Gas Sensor market will be able to gain the upper hand as they use the report as a powerful resource. The segmental analysis focuses on sales, revenue and forecast by region (country), by Type and by Application for the period 2016-2027.

Segment by Type
CO2
Combustible Gases
Other

Segment by Application
Industrial
Residential

The Infrared Gas Sensor market is analysed and market size information is provided by regions (countries). Segment by Application, the Infrared Gas Sensor market is segmented into North America, Europe, China, Japan, Southeast Asia, India and Other Regions.

By Company
Alphasense
CityTechnology Ltd
Drager
GSS
GE
Senseair
Dynament
SGX Sensortech (IS)
SmartGAS
Mipex
Clairair
Heimann
M-U-T
Edinburgh Sensors
Hanwei
NE Sensor