Automatic Greenhouse Window Opener Solar Heat Sensitive Auto Hothouse Vent Openers Roof Opening Tools for Sunlight Room Greenhouse Accessories -15.4($30.99Value)

Description

DURABLE MATERIALS-Made of high quality of galvanized steel.Durable and strong for long time use. PERFECT FOR GREENHOUSE WINDOW-This vent opener will automatically open and close your greenhouse window while the environment temperature changes , which will help you maintain the best growing temperature and prevents your greenhouse from overheating. SOLAR POWERED&ECONOMIC-Use solar energy only,no batteries or electricity required..Economic and Eco-friendly. HIGH LIFT CAPABILITY-Lifts vent weight up to 15.4 lbs ( 7 kg ),covers most of greenhouse windows.If it is still not enough for your window,you could use two window openers together. EASY INSTALLATION- Fit for most of aluminum&wooden frame greenhouse. Comes with a fitting accessory pack and a detailed manual for easy installation. Automatic Greenhouse Window Opener Specifications: Material:Durable galvanized steel Technical Data: 1.Maximum window opening approximately 17.7inch (45cm) 2.Lifts weight up to 15.3lbs (7kg) 3.Maximum opening at 86 Degree F (30 Degree C), depending on adjustment and load. 4.Open temperature adjustable from 60.8 Degree F to 77 Degree F (16 Degree C to 25 Degree C) Note: 1.Do not use your window opener where temperature will exceed 122 Degree F ( 50 Degree C ); 2.Before installation, make ensure your window can be opened without obstacle,otherwise damage might occur. 3.Do not apply excessive loads by locking or covering window. 4.When you receive this item in summer,please put the black part of cylinder(ONLY BLACK PART) into the refrigerator not less than 5 minutes to make the cylinder rod retracted fully before you assemble the vent opener.