NDIR CO2 Gas Sensor Introduction Gas with asymmetric molecular structure has strong absorption of infrared. So CO2 gas sensor NDIR-based has perfect selectivity for gas. Basically, the key components of the sensor are an infrared source, gas chamber and an infrared detector. When light wave corresponded to certain gas with absorption spectrum passes through measured gas, the intensity of light wave will be significantly weakened. The intensity attenuation is related to concentration of measured gas. Generally, it can be grouped into two main categories: single beam and dual beam according to the number beam of infrared detector to increase the indoor particle concentrations range from 1.5 to 27 times.

Difference Between Single Beam and Dual Beam Single beam CO2 gas sensor CM1106 The infrared detector is integrated with a photosensitive device and a narrow-band filter to enable a central wavelength of 4.26um to reflect or attenuate light to other wavelengths at the same time. Dual beam CO2 gas sensor CM1107 In addition to this single channel, CM1107 has an internal reference within the sensor itself. The infrared detector is integrated with two photosensitive devices and two narrow band filters. One channel allows the central wavelength of 4.26um to pass through and another channel is staggered...

Wall-mounted ventilation machine adopts Cubic two air quality sensors, laser particle PM2.5 sensor PM2008 and NDIR single beam CO2 gas sensor CM1106. The single beam CO2 gas sensor will have drift problem when long time usage, the sensor needs automatic calibration to ensure the accuracy. Thanks to the automatic background calibration function, the sensor could calibrate itself. The sensor will take the lowest CO2 reading as the zero point (400 ppm) within several days. In ventilated environment, the lowest CO2 concentration is close to 400 ppm. So the single beam CO2 sensor is suggested to be...

Ceiling mounted ventilation system installed in the garage usually adopts dual beam carbon dioxide sensor CM1107. The advantages are good stability, anti-interference, higher accuracy, etc. It is ideal suitable used in not ventilated environment such as ventilation system, agricultural greenhouse facilities, cold storage, garage, etc.

About Us Wuhan Cubic Optoelectronics Co., Ltd is a world’s leading manufacturer of gas sensor solutions for indoor and outdoor air quality sensors including non-dispersive infrared (NDIR) CO2 sensors, LED and laser particle sensors, formaldehyde sensors, volatile organic compounds (VOCs) sensors, medical ultrasonic gas quality and flow sensors, and automotive quality gas sensor modules. Founded in 2003, with over 15 years of experience on gas sensor innovation, Wuhan Cubic has become the comprehensive provider of gas sensors, gas analyzers, gas monitoring systems and IoT gas sensing solutions. Wuhan...

Wuhan Cubic Optoelectronics Co., Ltd TEL: +86-27- 81628827 FAX: +86-27-87401159 Email: [email protected] Web: http://www.gassensor.com.cn Add: Fenghuang No.3 Road, Fenghuang Industrial Park, Eastlake Hi-tech Development Zone,Wuhan, 430205, China