Characteristic Material: aluminum Type: T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11 Characteristic (1)With special sensor which is precise and steady (2) Without regeneration noise (3)When supply arm air , the sensor will adjust the effective ares of supply air to make the width of the air stream narrow ,as that can extend the throw of supply air (4)Do not need electric source and wire (5)Perfect appearance
