TOPINCN Greenhouse Window Opener Automatically Prevent Overheating Vent Autovent Solar Heat Energy Sensitive Automatic Greenhouses Roof

Automatic Adjustment – The automatically adjusted opening temperature range is 20°C to 25°C/68° F – 77° F. As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating.
Use Solar Energy – No battery or power required, uses solar energy, open or close the greenhouse vents as temperature rises or drops.
Easy To install – Equipped with screws, can be installed directly with clamps(not included) or screws, very simple and convenient.
Universal Vent Opener – Applicable to most windows, the maximum weight of the ventilation window is less than 7 kg can be used with confidence.
Applicable Scene – The maximum opening of the window is 45cm, simple installation, no complicated operations, can be clamped onto or screwed onto your greenhouse frame.