It is temperature adjustable and can be set to start opening the window from 13 – 18°C (55 -65 °F).
Bayliss XL Autovent Automatic Greenhouse Window Roof Vent Opener Auto Vent
Bayliss XL Solar Greenhouse Automatic Window Opener Auto Roof Vent green house
Bayliss Autovent XL Automatic window Opener for Greenhouse Auto Vent
Bayliss XL Autovent Automatic Greenhouse Window Opener Solar Roof Vent Opener
Replacement Cylinder for Bayliss XL Greenhouse Window Automatic Vent Openers
