Window Opener, Universal Auto Open, Louver Closer, Window Opening Tool with Clamps, Screws, Spring, Support Bar for Home Office, Easy to Install

General Description The SJLERST Window Opener is a universal automatic opening device designed for aluminum frame greenhouses. It uses a double spring system for greater thrust, providing a robust and durable solution for ventilation. This heat-sensitive mechanism automatically opens when the temperature increases and closes when the temperature decreases, maintaining an optimal environment in your greenhouse.Technical Specifications Material: Aluminum and Stainless Steel Item Weight: Approx. 376 g / 13.26 oz Package Weight: Approx. 439 g / 15.49 oz Package Size: Approx. 38 x 9.5 x 4.5 cm / 14.96 x 3.74 x 1.77 in Adjustable Auto Open Temperature: Between 15 and 25°C Maximum Opening: Approx. 30°C / 86°F Capacity: suitable for vents weighing up to 7 kg Maximum opening and closing angle: 45° Installation Easy to install, this vent opener is compatible with all aluminum framed greenhouses. It is recommended to allow the cylinder to cool for 24 hours before installation and not to heat above 50°C (122°F). Use The device operates in response to solar heat, opening the vent when the temperature increases and closing it when the temperature decreases, which helps keep the greenhouse within the desired temperature range.Other Information Packing List: 1 * Vent Opener, 1 * Accessory Kit, 1 * Manual (English) Do not disassemble the cylinder