Gravity: Analog Infrared CO2 Sensor For Arduino (0~5000 ppm)

SKU: SEN0219


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The concentration of carbon dioxide (0.03% usuallly) is related to daily life. Recently, thereأ¢â‚¬â„¢s a study showing that the atmospheric CO2 content has reached 0.0385% (385 ppm) which is the highest value since 2.1 million years. The raise of atmospheric CO2 content to some extent results in global climate change. How to accurately measure the carbon dioxide gas concentration is becoming a universal research topic.

DFRobot released its latest high-precision analog infrared arduinoط¢آ CO2 sensor. The effectively measuring range is from 0 to 5000ppm. This sensor is based on non-dispersive infrared (NDIR) technology and has good selectivity and oxygen-free dependency. Besides, its service life could up to 5 years! It integrates temperature compensation and support DAC output. Most importantly, the product is easy to use; it is compatible with all types of microcontrollers such asArduino with ADC function.

In addition, this Gravity: Analog Infrared CO2 Sensor For Arduino (0~5000 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: Analog Infrared CO2 Sensor is able to directly compatible with the DFRobotArduino IO expansion board thanks to its external DFRobotGravityinterface. This character simplify the use of the sensor as it is plug and play and no need additional wiring.

This CO2 Sensorط¢آ 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 theproduct wiki.

Gravity: Analog Infrared CO2 Sensor For Arduino (0~5000 ppm) arduino connection
DFRobot LCD Keypad Shield with Infrared Co2 Sensor
This is a 0~5000ppm CO2 sensor with analog output. It supports Arduino and other microcontrollers with ADC function. 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).

Analog 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 Gravityط£آ¯ط¢آ¼ط¥طŒAnalogElectrochemistry CO2 Sensor Gravityط£آ¯ط¢آ¼ط¥طŒAnalog IR CO2 Sensor Gravityط£آ¯ط¢آ¼ط¥طŒUART IRCO2 Sensor
SKU SEN0159 SEN0219 SEN0220
Operation Voltage 3.7ط£آ¯ط¢آ½ط¥آ¾5V 4.5ط£آ¯ط¢آ½ط¥آ¾5.5V 4.5ط£آ¯ط¢آ½ط¥آ¾5.5V
Gravity: Analog
3P Header Digital Output(Alarm):0ط£آ¯ط¢آ½ط¥آ¾VCC Level
Gravity: Analogط¢آ 
(Analog Output 0.4ط£آ¯ط¢آ½ط¥آ¾2V)
Gravity: UART
(0ط£آ¯ط¢آ½ط¥آ¾3.3V Level)
Measurement Principle
ط£آ¯ط¢آ¼ط«â€ Solid electrolyte battery principleط£آ¯ط¢آ¼أ¢â‚¬آ°
NDIR(non-dispersive infrared) NDIR(non-dispersive infrared)
Measurement Range 0ط£آ¯ط¢آ½ط¥آ¾10000 ppm 0ط£آ¯ط¢آ½ط¥آ¾5000 ppm 0ط£آ¯ط¢آ½ط¥آ¾50000 ppm
Accuracy ط¢آ±100ppm@400ppm ط¢آ±(100ppm + 6% readings) ط¢آ±(100ppm + 6% readings)
Response Time <20s <90s <30s
Average Power <1W <430mW@5V <430mW@5V
Operation Temperature -20ط£آ¢أ¢â‚¬â€چط¦â€™ط£آ¯ط¢آ½ط¥آ¾50ط£آ¢أ¢â‚¬â€چط¦â€™ 0ط£آ¢أ¢â‚¬â€چط¦â€™ط£آ¯ط¢آ½ط¥آ¾50ط£آ¢أ¢â‚¬â€چط¦â€™ 0ط£آ¢أ¢â‚¬â€چط¦â€™ط£آ¯ط¢آ½ط¥آ¾50ط£آ¢أ¢â‚¬â€چط¦â€™
Operation Humidity 0ط£آ¯ط¢آ½ط¥آ¾95% RH (No condensation) 0ط£آ¯ط¢آ½ط¥آ¾95% RH (No condensation) 0ط£آ¯ط¢آ½ط¥آ¾95% RH (No condensation)
Lifespan >1 years >5 years >5 years
32*42 mm 37*69 mm 21*27.1 mm
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
5.Ananglog Output
1.High Accuracy
2.Large Range
3.Long Lifespan
4.Auto Temperature Compensation
5.Water Vapor Interference Resistance
6.3.3V UART Output

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