Gravity: UART Infrared Carbon Dioxide Sensor (0-50000 ppm)

SKU:SEN0220 Brand:DFRobot Reward Points: 890
In Stock
Topic: Gravity
Quantity Based Price
  • 2-4$87.50
  • 5-9$84.50
  • 10+$80.00
* Model:


DFRobot released its latest wide range Arduino infrared CO2 sensor, which effective range is up to 0~50000ppm. This sensor is based on non-dispersive infrared (NDIR) technology and has good selectivity and oxygen-free dependency. It integrates temperature compensation and support UART communication mode. Most importantly, the product is easy to use; it is compatible with all types of microcontrollers with UART port, like Arduino, Raspberry Pi and other microcontrollers. Besides, it has a long service life, up to 5 years!

In addition, this UART Infrared CO2 Sensor 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 wide range detection, high sensitivity, high resolution, low power consumption, fast response, anti-water vapor interference, no poisoning, high stability and long life.

It can be widely used in HVAC refrigeration and indoor air quality monitoring, industrial process and safety monitoring, agricultural and animal husbandry production process monitoring, etc..

DFRobot LCD Keypad Shield with UART Infrared CO2 Sensor

This is a 0~50000ppm wide-range CO2 sensor with UART communication port. It supports Arduino, Raspberry Pi, and other microcontrollers. In addition, we also have a 0~5000 ppm high precision infrared sensor with Gravity Analog interface, more easy to use: Gravity Analog Infrared CO2 Sensor (0~5000ppm).

Gravity CO2 Sensor Selection Guide

Product Name Gravity: Analog Electrochemistry CO2 Sensor Gravity: Analog IR CO2 Sensor Gravity: UART IR CO2 Sensor Gravity: I2C SCD41 Infrared CO2 Sensor (400 - 5000 ppm)
SKU SEN0159 SEN0219 SEN0220 SEN0536
Operation Voltage 3.7~5V 4.5~5.5V 4.5~5.5V 3.3V-5V
Gravity: Analog
3P Header Digital Output(Alarm):0~VCC Level
Gravity: Analog
(Analog Output 0.42V)
Gravity: UART
(03.3V Level)
Gravity: I2C
Measurement Principle
Solid electrolyte battery principle


(non-dispersive infrared)


(non-dispersive infrared)

photoacoustic NDIR
Measurement Range 0~10000 ppm 400~5000 ppm 0~50000 ppm 400~5000ppm
Accuracy ±100ppm@400ppm ±(100ppm + 6% readings) ±(100ppm + 6% readings) ±(40 ppm + 5% MV)



<20s <90s <30s 60S



<1W <430mW@5V <430mW@5V <30mW@5V
Operation Temperature -20℃~50℃ 0℃~50℃ 0℃~50℃ -10℃~60℃
Operation Humidity 0~95% RH (No condensation) 0~95% RH (No condensation) 0~95% RH (No condensation) 0~95% RH (No condensation)
Lifespan >1 year >5 years >5 years >10 years
32*42 mm 37*69 mm 21*27.1 mm 32*27*8mm
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
1.CO2, temperature, and humidity, three in one
2. Small size of 32*27*8mm
3. Low power, average current<4mA


  • High sensitivity High resolution
  • Low power consumption
  • Excellent stability
  • Temperature compensation
  • Excellent linear output
  • High cycle life
  • Anti-water vapor interference
  • No poisoning
  • Need 5V power supply, even you are using a 3.3V microcontroller, like Genuino 101/ Raspberry Pi .etc.
  • Specification

  • Gas Detection: Carbon Dioxide (CO2)
  • Operating Voltage: 4.5 ~ 5.5V DC
  • Average Current: <85mA
  • UART output
  • Measuring Range: 0 ~ 50000ppm
  • Accuracy: ± (50ppm + 5% reading)
  • Preheating Time: 3min
  • Response Time: T90 < 30s
  • Operating Temperature: 0 ~ 50 ℃
  • Operating Humidity: 0 ~ 95% RH (no condensation)
  • Service Life: >5 years
  • Board Dimension : 21 * 27.11 mm/ 0.83 * 1.06 inches
  • Weight: 42g
  • Projects

    Project: Accurate soil health assessment using calibrated ammonia gas sensors

    Introduction: In this project, we will test the performance of the Ammonia Sensor NH3 Sensor (Calibrated) for the determination of soil fertility using a simple configuration.


    Shipping List

  • UART Infrared CO2 Sensor Probe (0-50000ppm) x1
  • Sensor Converter Board x1
  • 6-Pin Sensor Cable x1
  • PH2.0 Gravity UART Cable x1
  • XH2.54 4-Pin header x1




    Gravity: UART Infrared Carbon Dioxide Sensor (0-50000 ppm)

    In Stock
    • 2-4$87.50
    • 5-9$84.50
    • 10+$80.00