Automatic vent opener, automatic temperature greenhouse windows, temperature-sensitive paint, spring-based iron spray

Features: 1. [Automatic Ventilation Opener] The greenhouse window opener can automatically open and close your greenhouse window to maintain optimal temperatures and prevent overheating. 2. [Wide Applicability] The ventilation opener can be manually closed and is easy to install, fitting most aluminum-framed greenhouses. 3. [Adjustable Temperature Range] The temperature range is adjustable from 15 to 25℃ (60-77℉) by rotating the cylinder, with a maximum opening of approximately 30℃ / 86℉ (depending on the setting and load). 4. [High-Quality Construction] Durable and rust-resistant iron window opener with a powder-coated finish for long-lasting use. 5. [15 lb Load Capacity] Use the standard ventilation opener to lift up to 7 kg / 15 lbs. Specification: Description: The ingenious temperature-sensitive automatic vent opener can automatically open and close the window frame, working effectively to maintain the greenhouse within the preferred temperature range. The vent opener begins to open between 15 and 25℃ (60-77℉), depending on how you adjust the cylinder. Features: [Automatic Ventilation Opening] The greenhouse window opener can automatically open and close your greenhouse window to maintain optimal temperatures and prevent your greenhouse from overheating. [Wide Applicability] The vent opener can be closed manually and is easy to install, fitting most aluminum-framed greenhouses. [Adjustable Temperature Range] The temperature range is adjustable from 15 to 25℃ (60-77℉) by rotating the cylinder, with a maximum opening of approximately 30℃ / 86℉ (depending on the setting and load). [High-Quality Construction] Durable, rust-resistant iron window opener with powder coating for long-lasting use. [15 lb Load Capacity] Use the standard vent opener to lift up to 7 kg / 15 lbs. Specifications: Material: Aluminum, Stainless Steel Color: Black Star Open at: 15-25 ℃ (60-77 ℉) Fully Open at: 30 ℃ / 86 ℉ Maximum opening distance: 45 cm / 17.71 inches Load capacity: 7 kg / 15 lb Cylinder length: 33.8 cm / 13.3 inches Package size: 37.5 * 9.8 * 4.5 cm / 14.76 * 3.85 * 1.77 inches Package weight: 439 g / 0.96 lb Package list: 1 * Automatic ventilation opener 1 * Cylinder 1 * Accessory pack 1 * Manual (English) Note: Do not heat above 50°C (122°F). Do not disassemble the cylinder. Do not apply excessive loads by locking or covering the window. Package List: 1 * Automatic Ventilation Opener, 1 * Cylinder, 1 * Accessory Pack, 1 * Manual (English) Note: Do not heat above 50°C (122°F). Do not dismantle the cylinder. Do not apply excessive force by locking or covering the window.