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RHP-certified coco is pre-buffered
Measures: soil moisture tension
Hard water specific
Anyone building a custom multi-size pipework setup
G.A.S. Intelligent Humidity / VPD Controller Bulky RHP-certified coco is pre-bufferedG. A. S Intelligent Humidity VPD Controller Automatic Humidity Control Based on Real Plant Science Best for: growers who want their humidifier or dehumidifier switched automatically based on Vapour Pressure Deficit rather than a fixed humidity percentage. Our thoughts Most humidity controllers just hold a fixed relative humidity percentage. This one calculates VPD from both temperature and humidity together, which is a genuinely more accurate way to
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