GrowDirector CO2 SensorA CO2 sensor monitors the levels of carbon dioxide (CO2) within the growing environment. CO2 is essential for photosynthesis, and maintaining optimal levels can improve plant growth, development, and yield. CO2 sensors work by detecting changes in the amount of CO2 in the air surrounding the plants, typically by measuring changes in the infrared light absorption or conductivity. The sensor data can be used to adjust ventilation or CO2 injection