window opener HX-T312-1

1.Fully automatic greenhouse ventilation
2.Heat activated
3.Fully adjustable to open between 15-25 C (60-77 F)
4.Open window fully to 350mm
5.Suitable for windows up to 7kg
6.Easy fitting by clamps or screws provided
7.No batteries or electricity required

window opener, automatic vent opener, window operator