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In addition, this Gravity: Infrared CO2 Sensor For Arduino (400~5000 ppm) is a high-performance sensor that combines technology of mature infrared absorption gas detection with precision optical circuit design as well as sophisticated circuit design. It has characteristics such as high sensitivity, high resolution, low power consumption, fast response, anti-water vapor interference, no poisoning, high stability, and long life.
This Gravity: Infrared CO2 Sensor is able to directly compatible with the DFRobot Arduino IO expansion board thanks to its external DFRobot Gravity interface. This character simplify the use of the sensor as it is plug and play and no need additional wiring.
This CO2 Sensor could be widely used in HVAC, indoor air quality monitoring, industrial process, and security protection monitoring, agriculture, and animal husbandry production process monitoring.
DFRobot provides detailed tutorials and code, please check the product wiki.
In addition, we also have a 0~50000 ppm wide-range infrared sensor with Gravity UART interface, Compatible with Arduino, Raspberry Pi, and other microcontrollers: Gravity: UART Infrared CO2 Sensor (0~50000ppm).
Infrared CO2 Sensor For Arduino Tutorial:
ESP32 Arduino: Using an infrared CO2 sensor
ESP32 Arduino: Temperature, humidity and CO2 concentration web server
Gravity CO2 Sensor Selection Guide | |||
Product Name | Gravity:Analog Electrochemistry CO2 Sensor | Gravity: Infrared CO2 Sensor For Arduino | Gravity:UART IR CO2 Sensor |
SKU | SEN0159 | SEN0219 | SEN0220 |
Operation Voltage | 3.7~5V | 5V | 4.5~5.5V |
Output | Gravity: Analog (Analog2.7~4.1V) + 3P Header Digital Output(Alarm):0~VCC Level | Gravity: PWM | Gravity: UART (0~3.3V Level) |
Measurement Principle | Electrochemistry (Solid electrolyte battery principle) | NDIR(non-dispersive infrared) | NDIR(non-dispersive infrared) |
Measurement Range | 0~10000 ppm | 400~5000 ppm | 0~50000 ppm |
Accuracy | ±100ppm@400ppm | ±(100ppm + 6% readings) | ±(100ppm + 6% readings) |
Response Time | <20s | T90<120s | <30s |
Average Power | <1W | <430mW@5V | <430mW@5V |
Operation Temperature | -20℃~50℃ | -10℃~50℃ | 0℃~50℃ |
Operation Humidity | 0~95% RH (No condensation) | 0~95% RH (No condensation) | 0~95% RH (No condensation) |
Lifespan | >1 year | >5 years | >5 years |
Dimension (PCB) | 32*42 mm | 37*69 mm | 21*27.1 mm |
Features | 1.Large Range 2.Adjustable Alarm Threshold 3.Fast Response 4.Analog Output | 1.High Accuracy 2.Long Lifespan 3.Auto Temperature Compensation 4.Water Vapor Interference Resistance | 1.High Accuracy 2.Large Range 3.Long Lifespan 4.Auto Temperature Compensation 5.Water Vapor Interference Resistance 6.3.3V UART Output |