Features: The CO2 Monitor Controller features a split probe sensors design for flexible placement and stable, accurate CO2 concentration measurement up to 5000ppm in agricultural environments. Equipped with double channel NDIR detection technology and automatic controls systems, it intelligently regulates CO2 supply based on real time greenhouse readings through its LCD interfaces. Ideal for farmers, horticulturists, and facility managers requiring precise gas analysis in greenhouses, flower nurseries, and livestock farms. Perfectly monitors CO2 levels in diverse settings including plant growth chambers, medical facilities, and indoor public spaces like libraries. This plastic built gas analyzers serves as essential greenhouse equipment, ensuring optimal plant growth through reliabled NDIR based environmental control. Specifications: Size: 19.5x12cm Suitable for: greenhouse planting, flower planting, breeding farms, libraries, hospitals Component:Plastic Package Includes: 1pcs CO2 Monitor Detector note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.