Heat Sensitive Automatic Window Door Opener Kit for Agricultural Greenhouse Garden,Default NO5241

Feature:

Best 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

Important notice:Do not use this opener anywhere the temperature will exceed 50 degC(122F)

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

Specifications:

Maximum window opening: 45cm

Maximum opening about 30 degree, depending on adjustment and load

Maximum opening weight 7kg/15lb

Adjustable open temperature range 15 - 25 degC/60 -77 F

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