SO2 module NDIR Infrared sulfur dioxide module gas sensor


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NDIR SO2 gas module is a gas sensor module based on NDIR infrared absorption detection principle. Infrared SO2 gas module adopts imported light source, special optical cavity and double channel detector to realize space double optical path reference compensation. Microprocessor for signal acquisition, processing and output. Infrared SO2 gas module has good selectivity, high sensitivity, no oxygen dependence, long life, low power consumption; With UART, 485 output and analog current/voltage output, compact structure, convenient for customers in a variety of applications.


1. The good selectivity of large-range monitoring products makes up for the shortcomings of traditional electrochemical sensors in the selection of high-range testing range.

2, without fear of harsh environment using imported infrared light source and double channel pyroelectric measurement, and can automatically compensate the temperature function, even in harsh temperature and environmental conditions, also can obtain stable and reliable measurement results.

3. Long service life, NDIR sensor has no obvious use consumption compared with traditional electrochemical sensor, and has a long service life.

4, zero calibration function: convenient for users to calibrate zero.


SO2 gas sensor module is mainly for atmospheric monitoring, environmental monitoring, analytical monitoring instruments, scientific research institutions and other development and production enterprises to provide supporting analysis sensor module.

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