Automatic Window Opener Solar Heat Sensitive Thermo Greenhouse Vent Window Open Agricultural Auto Roof Opening Garden Tool

Features:

Prevent greenhouse overheating.

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.

Can be clamped onto or screwed onto your greenhouse frame.

Specifications:

(Single Spring Kit)

Greenhouse Window Opener Kit

Material: Aluminum Alloy

Fully adjustable between 20 - 25 ° C (68 - 77 ° F)

Maximum window opening: 45cm / 18 inch

Maximum opening weight: 7kg/15lb

Size: Approx. 38x9.5x5cm / 15.0x3.7x2.0in

Specifications:

(Double Spring kit)

Maximum window opening: 45cm

Maximum opening about: 30°

depending on adjustment and load Maximum opening weight: 7kg/15lb

Adjustable open temperature range: 15°- 25°/60°-77F

Size: 38 x 9.5 x 9.5 cm / 14.96 x 3.74 x 3.74 inch (appr.)

Package:1 x Automatic Window Opener Kit(Single/Double Spring kit)Notes:

Do not use this opener anywhere the temperature will exceed ° (122F)

Please ensure your greenhouse window can be opened freely by at least 45cm (18")

Do not apply exceive loads by locking or covering window

Do not dismantle the cylinder

The opener CANNOT stop by manual

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.

Due to the upgrade of this item, the 11th part showed in manual is not included. Please take the real one as standard

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