This is a DFRobot Gravity UART Infrared CO2 Sensor (0-50000ppm).

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 supports UART communication mode. Most importantly, the product is easy to use; it is compatible with all types of microcontrollers with UART ports, 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 the 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.

Connection Diagram:

Useful link:

For more information you can refer to DFRobot Gravity UART Infrared CO2 Sensor tutorial.

Features:

1. High sensitivity High resolution
2. Low power consumption
3. Excellent stability
4. Temperature compensation
5. Excellent linear output
6. High cycle life
7. Anti-water vapor interference
8. No poisoning
9. Need 5V power supply, even you are using a 3.3V microcontroller, like Genuine 101/ Raspberry Pi .etc.

Package Includes:

1 x DFRobot Gravity UART Infrared CO2 Sensor (0-50000ppm)