Теплица низкая мощность система открытия окна сад Автоматическая Легкая установка чувствительной вентиляции цилиндр температура солнечной энергии ed Полезная

Features:
This is a replacement cylinder for automatic window opener.
Suitable for your greenhouse window, opens and closes your greenhouse window.
Non-electric, uses solar energy, open or close the greenhouse vents as temperature rises or drops.
As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating.
Specifications:
Material: Stainless Steel
Color: Black
Product Size(about): 1.5 x 33 cm
Package Included:
1 x Window Opener
Note:
1. Due to the light and screen difference, the item's color may be slightly different from the pictures.
2. Please allow 0.5-2 cm differences due to manual measurement.