2 Pack Aluminum Greenhouse Automatic Window Opener, Solar Thermal Roof Window Opening Kit, Automatic Roof Vent Opener, Greenhouse Accessories (Double Spring)

About this item Product Material The product is made of high quality aluminum alloy and stainless steel, high quality details design. Easy installation Package with clamps and screws to make your installation more convenient. Applicable scope It is suitable for greenhouse and multi-occasion window use 1 Minimum opening temperature: 15-25℃ 2 Fully open temperature: 30℃ 3 Maximum opening distance: 45cm 4 Maximum load: 28-30lb This automatic greenhouse opener automatically opens and closes windows when the ambient indoor temperature changes, maintaining optimal indoor temperatures and preventing the greenhouse from overheating.