Controller designed for the release of carbon dioxide from a CO₂ bottle. It has an adjustable internal timer, calibrated for various growing area sizes. All you have to do is connect the controller to both the power supply and the CO₂ bottle, and set the timer according to the size of the greenhouse. A table with a large number of room sizes is supplied with the controller, so installing this equipment takes just a few minutes. The CO₂ supply must be done in a day cycle (connect to the same timer as the lighting equipment). This controller is suitable for regulating the CO₂ in greenhouses up to 100 cubic meters and maintains the growing area between 1000 and 1200 ppm.