The invention relates to a device for the automatic and instantaneous detection of movements of an object with respect to a housing containing or capable of containing this object chosen from the introductions of this object in this empty housing and the extractions of this object from its housing. In particular, the amount of extractable total organic carbon on the resins may be less than about 200 parts per trillion by wet weight, as measured using gas chromatographymass spectrometry. Further, the method includes detecting the activation of the vehicle system and playing the sound associated with the vehicle system through a vehicle audio system. Additionally, if vital functions are not being met, the method may shed other selected aircraft electrical loads which may ensure that adequate power is provided to the primary load system. The frequency or amplitude setpoint is controlled by a slew rate limiter. In preferred embodiments the locking member or members are spring biased toward a locking position where the locking member engages a flange of the support frame to prevent the end plate from moving out of the engaged position.