This board your air conditioner works only when the doors of your room are closed.
When the tenant opened the balcony door or room window the mechanism is activated and stops the operation of the Air Condition, resulting in energy savings. The board works with magnetic traps are placed inside doors. The traps mounted in the fixed part of the door (frame) and the magnet on the movable part (file).

Store price: 40,000€ 
Internet price(With V.A.T.): 35,000€