Steel automatic window opener
- Fully automatic greenhouse ventilation
- Heat activated
- Temperature controlled sensor cylinder enables roof vents to be opened and closed at the appropriate time, ensuring sufficient airflow
- Universal fit - suitable for any aluminum frame and wood frame greenhouse
- Simple and effective way to provide extra ventilation for your greenhouse
1. Material: Steel and stainless steel
2. Star open at: 20-25℃ (68-77℉)
3. Fully open at: 38-40℃ (100-104℉)
4. Fully close at: 15℃ (59℉)
5. Max open distance: 45cm/18''
6. Loading: 7kgs/15lbs
7. Easy fitting by clamps or screws provided.
8. No batteries or electricity required.
