Humidity is a complicated business. Dry air allows water to evaporate, which leads to plants transpiring or water evaporating from the leaves. In turn they draw up too many nutrients and burn the leaves. Whereas, if your humidity is too high condensation can form on the leaves and cause mould. Your plants won’t be able to transpire and won’t draw up enough nutrients.
To complicate things more, the temperature of the air has a knock-on effect on the volume of humidity the air can hold. VPD is a measurement of the ability of moisture to evaporate from the leaves of your plant.
Months of research have gone into the Intelligent Humidity Controller – it calculates the vapour pressure deficit on the leaves of your plants and maintains the optimum humidity depending on where the plant is in the growth cycle and your grow room temperature. In short, it creates a better environment for your plants.
The GAS Intelligent Humidity controller comes with a temperature, humidity and light probe as well as day and night humidity functions, it gives you the option to control your humidifier in 4 different ways. It also has a warning display feature to let you know if your humidifier has run out of water.

• Humidifier controller
• Intelligently learns to maintain the perfect humidity
• Day and night settings
• Dynamically changes the humidity based on the temperature
• Displays a warning if the humidifier runs out of water