A stronger automatic opener for larger and heavier roof windows. The thermal cylinder senses the temperature in the greenhouse and opens or closes the window automatically, without electricity and without batteries.
- Lifting force up to 12 kg, for larger windows and flaps
- Works automatically based on temperature, without electricity
- Adjustable opening temperature
- A robust metal version for a long service life
Also suitable for ripening during heatwaves, when regular ventilation is crucial for healthy plants.
Customer reviews
What our customers say
Real experiences from customers with this product.
Have you experienced this product? Share it with us. Reviews are published after moderation.
Write a review