Automatic Louver Blind Window Opener, Temperature - Activated Window Opening Tool, Aluminum Vent Opener with Spring Support Bar for Greenhouse Home Office, No Electricity

Condition: 100% Brand NewItem Type: Window OpenerMaterial: AluminiumOpening Force: 25kg / 55lbOperation Area: Start at 17-25℃ (63-78℉)Maximum Open: Full at 30-32℃ (86-90℉)Closing Force: 15kg / 33lb via heavy duty springSupport Bar Length: Approx. 34cm / 13.4inSpring Fixing Tool Size: Approx. 14 x 5 cm / 5.5 x 2 inWeight: Approx. 343g / 12.1ozPackage List：1 x Support Bar1 x Spring Fixing Tool4 x Slotted Screw2 x Small Cross Nail4 x TD Screws2 x Small Screw4 x Large Round Fixed Ring2 x Small Round Fixed Ring2 x Round Iron Ring1 x Instruction Manual

• Temperature-Activated Operation: This automatic louver blind window opener senses ambient temperature and automatically opens between 63–78°F (17–25°C), reaching full opening at 86–90°F (30–32°C). Perfect for greenhouses, sunrooms, or attics, it delivers hands-free ventilation without needing electricity or batteries, ensuring your space stays cool and fresh year-round.
• Wind- Design: Built with a heavy-duty spring and sturdy support bar, this window opening tool delivers 55lb (25kg) of opening force and 33lb (15kg) of closing force to hold louver windows firmly in place—even during gusty weather. Say goodbye to slamming shutters or damaged frames caused by sudden breezes.
• Universal Compatibility: Designed to fit most standard louver or blind windows, this automatic window opener works seamlessly in homes, offices, greenhouses, and sheds. Installation is quick and tool-friendly using the included clamps or screws, making it ideal for DIY enthusiasts seeking effortless climate control.
• Premium Aluminum Construction: Crafted from rust-, high-quality aluminum, this durable window opener withstands humid, outdoor, or high- environments without corroding. Its smooth operation and robust build ensure reliable performance season after season with minimal maintenance.
• Complete Installation Kit Included: Your package includes 1 support bar, 1 spring fixing tool, multiple screws, nails, fixed rings, and a clear instruction manual—everything needed to set up your automatic louver blind window opener right out of the box for immediate, worry-free use.