Optimum ventilation: your plants get optimum ventilation through temperature-controlled opening and closing. Depending on the temperature, the piston of the cylinder moves to open or close the window. Individually adaptable: can be easily and quickly installed in ordinary garden and greenhouse windows. You can constantly adjust the angle of the opening window by turning the cylinder to achieve the right ventilation for your bed. No power required: environmental awareness is pre-determined - Deuba's automatic window opener is a temperature-controlled, fully automatic device. Ultra-light: easy to transport thanks to the ultra-light and practical design, ideal for all windows in ordinary aluminium gardens and conservatories. Supplied with: 1 window regulator | Lifting force: max. 7.5 kg | Lifting height: max. Temperature range: Dimensions: (L x W x H) 32 cm x 4.5 cm x 5 cm