An impact sensing device comprising a sealed chamber (20) filled with a pressure medium and at least one surface acoustic wave device (22) associated to said sealed chamber (20) for sensing a pressure inside said pressure chamber (20). The sealed chamber (20) is designed to be arranged in a vehicle at a location where an impact during a collision situation is to be sensed. The surface acoustic wave device (22) includes at least one surface acoustic wave resonator (26) and an antenna (28) for remotely communicating with a control unit (30) arranged within said vehicle. <IMAGE>
