ENERGY EFFICICENT: Brand new Greenhouse Automatic Window Opener. Non electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops, environmental friendly.
UNIVERSAL & APPLICATION: Ideal for your greenhouse window opens and closes your greenhouse window as the temperature.Automatic air vent opener is appropriated for most of the current garden greenhouses.
EASY TO ASSEMBLE: Screws and installation manual for fittings included, can be clamped onto or screwed onto your greenhouse frame，please ensure your greenhouse window can be opened freely by at least 45cm (18").
AUTOMATICALLY: Changes automatically, maintains the best growing temperatureand prevents your greenhouse from overheating, adjustable open temperature range 15°- 25°/60°-77F.
QUALITY CONSTRUCTION: Reliable, quality built anodised aluminium automatic window opener for greenhouses.Can be clamped onto or screwed onto your greenhouse frame.No drilling needed.
