Greenhouse Automatic Roof Vent Opener Replacement Cylinder, Non - Electric Temperature Sensor, Solar - Powered Ventilation Control for 15-25°C Range, with Silver Black Actuator R
Product Information
About
Automatic Temperature Regulation: This greenhouse automatic roof vent opener replacement cylinder responds to ambient heat without electricity, expanding or contracting between 15°C and 25°C (60°F–77°F) to open or close vents, maintaining optimal growing conditions and preventing overheating in your greenhouse.
Solar-Powered & Non-Electric Design: The automatic temperature sensor uses thermal expansion powered entirely by solar energy—no batteries or wiring needed—making it a reliable, eco-friendly solution for consistent greenhouse ventilation even during power outages or in remote garden setups.
Ideal for Greenhouse Enthusiasts: Perfect for home gardeners, hobbyists, and small-scale growers, this vent opener ensures fresh air circulation for tomatoes, , seedlings, and delicate plants that require stable temperatures, working silently and continuously throughout the day.
Durable Metal Construction: Made from high-quality silver and black metal components, the replacement cylinder features a solid actuator rod (33.5 cm long, 1.5 cm diameter) and dual springs that withstand daily thermal cycling, offering long-lasting performance in humid greenhouse environments.
Complete Ready-to-Install Unit: Includes one pre-assembled greenhouse winder opener cylinder that requires refrigeration before first use; simply mount it on your existing roof vent frame—the compact design fits standard greenhouse windows and operates smoothly from closed (32 cm) to open (24.7 cm width).
Product Description
Features:Made of quality material, durable, solid and convenient to use. As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating. Non-electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops. Ideal for your greenhouse window. The temperature is automatically adjusted from 15 to 25 °C. Specifications:Item Type: Greenhouse Winder Opener Cylinder Color: Sliver + Black Temperature range 15°- 25°/60°-77FSupport rod total length: 33.5cm / 13.19 inch (appr.), the largest diameter: 1.5cm / 0.59 inch (appr.)Double spring window opener (closed state) total length: 32cm / 12.60 inch (appr.)(Open state) width: 24.7cm / 9.72 inch (appr.)Package List:1 x Greenhouse Winder Opener CylinderNotes:Do not use this opener cylinder anywhere the temperature will exceed 50° (122F).Do not dismantle the cylinder.This products need to be refrigerated before use it.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.
