Achieving high gas selectivity and high precision with a single light source dual-wavelength NDIR (non-dispersive infrared absorption) method!
We introduce the 'CO2 (carbon dioxide) sensor module,' which has achieved a lifespan of over 10 years without calibration through the optimization of sensing intervals. By utilizing the fact that the infrared absorption characteristics differ depending on the type of gas, we have adopted a method that measures two wavelengths: the CO2 absorption wavelength and a reference wavelength. This module can be used for applications such as monitoring ventilation conditions, confirming the presence of people and animals, managing growth environments through the photosynthesis-promoting effects on plants like crops, and checking for the presence and freshness of vegetables in refrigerators. 【Features】 ■ Widely used for air quality monitoring ■ Adopts a method that measures two wavelengths: the CO2 absorption wavelength and a reference wavelength ■ Achieves high CO2 selectivity and high precision ■ Achieves a lifespan of over 10 years without calibration through the optimization of sensing intervals *For more details, please refer to the related links or feel free to contact us.
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basic information
【Specifications (Partial)】 ■Detection Method: Single Light Source Dual Wavelength Method ■Measurement Concentration Range: Carbon Dioxide 400–5,000 ppm ■Output Signal: PWM Open Connector, UART ■Detection Cycle: Every 2 seconds ■Measurement Accuracy: ±(50 ppm + 5% of reading) ■Power Supply Voltage: 5VDC ± 10% *For more details, please refer to the related links or feel free to contact us.
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Applications/Examples of results
【Uses】 ■ Monitoring ventilation conditions ■ Confirming the presence of people and animals ■ Managing growth environments through the photosynthesis-promoting effects of plants such as crops ■ Checking the presence and freshness of vegetables in the refrigerator *For more details, please refer to the related links or feel free to contact us.
Company information
NISSHA has continuously expanded its core technologies by integrating printing technology, which it has cultivated since its founding, with elements such as coating, molding, and metal processing. This has enabled the diversification of products and target markets, as well as entry into global markets, thereby achieving an expansion of its business domain. The current core technologies consist of "printing," "coating," "lamination," "molding," "patterning," and "metal processing," and they continue to evolve and expand by incorporating new technologies and materials.
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