Customers who rely on climate control systems, such as HVAC (Heating, Ventilation, and Air Conditioning), in their growing facilities can benefit from VPD calculations.  
VPD stands for "Vapor Pressure Deficit." It is a metric used to quantify the difference between the amount of moisture present in the air (humidity) and the maximum amount of moisture the air can hold at a specific temperature. In simpler terms, VPD measures how much the air is "drying" or "pulling" moisture away from surfaces, including plant leaves. 
VPD is an important concept in agriculture, horticulture, and indoor gardening because it helps determine the potential for water loss from plants through a process called transpiration. Transpiration is the movement of water from plant roots to the leaves, where it evaporates into the air through small pores called stomata. This process is essential for nutrient uptake and cooling in plants. By understanding the VPD, growers can adjust the environmental conditions (temperature and humidity) to create an optimal balance between water uptake and loss through transpiration. Maintaining the appropriate VPD range helps prevent over-stressing plants by minimizing excessive water loss and promoting efficient nutrient absorption.  

Real-time VPD calculations can help accurately determine the current environmental conditions and how they are affecting plant growth. This information can help you make timely adjustments to temperature, humidity, and irrigation to optimize plant growth and health. This will ensure that you use resources efficiently and cost-effectively.