The Woodside® Automatic Vent Opener is ideal for keeping greenhouses at
the perfect temperature. The vent will open once it reaches a certain
temperature. The vent is fully adjustable to open between 15-25℃
(60-77°F). Suitable for windows up to 7kgs (opens windows fully to
450mm). Very easy installation. No batteries or electricity required.
This is made from a high quality Alloy aluminium and stainless steel.