Automatic Greenhouse Vent Opener, Cylinder Roof Vent Opener Greenhouse Automatic Replacement Kit Window Cylinder Temperature Sensor for Accessories

Good Materials: The hothouse vent openers are made of good materials, the greenhouse vent automatic opener installation process is simple and intuitive, and auto roof vent opener only a few screws or buckles are needed to fix it on the greenhouse windowAutomatic Constant Temperature: Automatic roof vent opener automatically changing with temperature to maintain optimal growth temperature, auto vent opener allowing hot air to be expelled from the window while introducing cooler external airSolar Non Electric: Solar greenhouse vent opener non electric, window opener for greenhouse using solar energy to open or close greenhouse vents when temperature rises or falls, versatile window opener for greenhouse no need for electric drive at allSpecifications: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.

• Good Materials: The hothouse vent openers are made of good materials, the greenhouse vent automatic opener installation process is simple and intuitive, and auto roof vent opener only a few screws or buckles are needed to fix it on the greenhouse window
• Automatic Constant Temperature: Automatic roof vent opener automatically changing with temperature to maintain optimal growth temperature, auto vent opener allowing hot air to be expelled from the window while introducing cooler external air
• Solar Non Electric: Solar greenhouse vent opener non electric, window opener for greenhouse using solar energy to open or close greenhouse vents when temperature rises or falls, versatile window opener for greenhouse no need for electric drive at all
• Greenhouse Window Dedicated: The greenhouse window automatic vent opener is very suitable for your greenhouse windows, such as aluminum frame greenhouses, wooden frame greenhouses, and plastic film greenhouses. Greenhouse automatic temperature-controlled window opener can adapt well to all of them
• Adjustable from 15 to 25 Degrees: The automatic window opener with screw can automatically adjust between 15 ℃ and 25 ℃, suitable for the growth of cold season vegetables such as spinach, lettuce, peas, tomatoes, peppers, cucumbers, eggplants, etc