Greenhouse Window Opener Automatic Solar Heat Sensitive Window Opener for Agriculture

Features:
- Ideal for your greenhouse window: opens and closes your greenhouse window 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
- Including fittings & installation manual
- Can be clamped onto or screwed onto your greenhouse frame

Specifications:
- Material: Aluminum Alloy
- Fully adjustable between 15-25°C (59-77°F)
- Maximum window opening: 45cm /18 inch
- For Windows: Max. 7kg/15lbs

Note:
- Do not use this opener anywhere the temperature will exceed 50°C (122°F);
Please ensure your greenhouse window can be opened freely by at least 45cm (18");
- Do not apply excessive loads by locking or covering window;
- Do not dismantle the cylinder;
- The opener CANNOT stop by manual.