Dropship Greenhouse Window Opener Vent Automatic Opener

This auto vent opens and closes your greenhouse window for you. It is easy to install and does not need electricity as it uses the heat from the sun. Perfect for letting the heat out of your greenhouse and when cool, keeping it in.

Features:

• Easy to install and does not need electricity as it uses the heat from the sun.
• Automatically starts to open with the heat from the sun between 17°C - 25°C (68 - 77 °F), depending on the setup.
• Made from Aluminium zinc coated steel.
• Maximum opening approx 45cm depending on adjustment and load. Full instructions provided.
• Has an opening force of 7kg. Maximum opening at 30°C.
• Package contents: 

1 x Automatic Window Opener Kit 

Notes: 
Do not use this opener in places where the temperature exceeds 50°. Make sure your greenhouse window can be opened at least 45cm wide. Do not exert excessive loads by locking or covering the window. Do not disassemble the cylinder. The opener cannot stop by hand. The monitors are not calibrated the same, the colours shown in the photos may differ slightly from the actual object.