2PCS Auto Roof Vent Opener Automatic...

Product description Features: Depending on the temperature, the piston of the cylinder moves and opens or closes the window automatically.As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating.Does not require electricity or batteries. With the instructions supplied, the opener can be opened easily and without problems.Can be clamped onto or screwed onto your greenhouse frame.Perfect ventilation of garden and greenhouses I Ultra light.Opening angle can be adjusted continuously by turning the cylinder. GREENHOUSE WINDOW OPENER KIT Material: Aluminum AlloyFully adjustable between 20 – 25 ° C (68 – 77 ° F)Maximum window opening: 45cm / 18 inchMaximum opening weight: 7kg/15lbSize: Approx. 38×9.5x5cm / 15.0×3.7×2.0in SUITABLE FOR MOST GREENHOUSES Notes: Do not use this opener anywhere the temperature will exceed 50° (122F) Please ensure your greenhouse window can be opened freely by at least 45cm (18″) Do not apply excessive loads by locking or covering window Do not dismantle the cylinder The opener CANNOT stop by manual Suitable for greenhouse windows up to 7 kg (from 7 kg we recommend using two window drives). ��【Temperature-Sensitive Ventilation】Our automatic window opener will automatically open and shut your greenhouse window to maintain the best growing temperature and preventing your greenhouse from overheating, efficiently regulating your greenhouse’s internal climate.��【Premium Material】Featuring an aluminum spray-painted cylinder, the solar window opener is built to last and withstand harsh weather conditions. Aluminum frame looks more lustrous, durable and rust-proof. Stainless steel accessories would guarantees long-lasting performance.��【Wide Temperature Range】Operating between 15°C to 25°C (60°F – 77°F), the opener adapts to various weather conditions. It achieves a full opening at temperatures above 38°C (100°F) and offers a maximum vent distance of 45cm (18″). Do not use this opener anywhere the temperature will exceed 60° (140 f).��【Energy-Efficient & Eco-Friendly】The greenhouse window opener does not consume any power, no batteries or electrical power needed, which is energy-saving and environmentally friendly.��【Ideal for Your Greenhouse Window】You will receive 2pcs of automatic greenhouse vent openers, enough quantity to meet your needs and replacements. Each opener comes with a fitting accessory pack and a detailed manual for easy installation.