CO2 Sensors
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NDIR Carbon Dioxide Gas Sensor, Maintenance-free
NDIR Carbon Dioxide Gas Sensor Provider: CO2 Gas Sensors, Non-dispersive Infrared (NDIR), Maintenance Free, Automatic Calibration, 400-5000ppm Range.
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PM1.0, PM2.5, CO2, TVOC, Humiture Detection Sensor
We Provide All-in-one Air Quality Detection modules, PM1.0, PM2.5, CO2, TVOC, and Humiture Temperature All-in-one Detection Sensors, with Response times ≤4s.
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Multi-function Humidity Sensor, PM2.5, CO2, TVOC
We Provide Multi-function Humidity Sensors, Multi-function Air Quality Detection Modules, PM2.5, CO2, TVOC, 200 mA, Ripple <100 mV, 6.9 X 5.15 X 1.8 CM.
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PM2.5 TVOC CO2 All In One Air Quality Detection Sensor
We Provide All-In-One Air Quality Detection Module, PM2.5 VOC CO2 Temperature and Humidity All In One Sensor Module, DC 5±0.5V, High Precision.
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Air Quality Detection Sensor, PM2.5, CO2, TVOC, UART TTL
We Provide Air Quality Detection Sensors, Direct Wholesale Air Quality Detection Module Sensors, for PM2.5, CO2, VOC, UART TTL, etc, 45g.
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Multi-function Air Quality Detection Module
We Provide Wholesale Multi-function Air Quality Detection Modules, Factory Wholesale Multi-function Sensor Modules, PM2.5, CO2, VOC, 200 mA, and 45g.
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PM2.5 VOC CO2 All In One Air Quality Detection Module
We Provide PM2.5 VOC CO2 All In One Air Quality Detection Modules, Air Quality PM2.5 VOC CO2 Multi-function Sensors, Laser Scattering, and Semiconductor Technology.
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PM2.5 PM10 TVOC CO2 Formaldehyde Temperature Humidity Sensor
We Provide PM2.5 PM10 TVOC CO2 Formaldehyde Temperature Detectors, All-in-one Integrated Air Quality Detection Module, PM 1.0, PM2.5, CO2, TVOC, Humiture.
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Laser Electrochemical Formaldehyde Sensor
We Provide Electrochemical Formaldehyde Sensors, High Precision Electrochemical Formaldehyde Sensors, and Detection of All-in-one modules in the air by Laser.
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High Precision Air Quality Carbon Dioxide Sensor
High Precision Air Quality Carbon Dioxide Sensor Maker: Gas Air Quality CO2 Sensors, Accuracy ± 50 ppm + 5% reading, 30s Power-on time, 400-5000 ppm.
The working principle of CO2 sensors is as follows. Infrared light with a certain intensity and wavelength hits the air and will be absorbed by carbon dioxide. And receiving tube outputs the corresponding electrical signal by detecting the intensity of the absorbed infrared light. The sensor internally filters and amplifies the electrical signal, and the MCU calculates the concentration of carbon dioxide in the air through an algorithm. Among such sensors, the CO2 sensors with the infrared principle are the most widely used. They possess good selectivity, no oxygen dependence, long service life and high precision, and are not easily be interfered by the environment. Therefore, they play an important role in the petrochemical industry, atmospheric monitoring, medical care, smart agriculture and other fields.
When using a CO2 sensor for carbon dioxide concentration monitoring, the following aspects need to be paid attention to. First, measuring range. In general, the default measurement range of CO2 sensors is 0-5000ppm. However, on some agricultural occasions, when the respiration of the crop is intense, the CO2 concentration might exceed 5000ppm. Second, waterproofing. The carbon dioxide sensor has a gas-permeable membrane, so the device is not waterproof. Third, environment temperature. The working temperature of the CO2 sensor is -10-50℃. If it is exceeded, measurement errors will occur.