Patent ID: 7315246

Claim:
An apparatus comprising a monitoring device that includes: a support; a door engaging member supported for movement to and from an operational position with respect to said support, said member having a door engaging portion and being movable to said operational position in response to engagement of a movable door with said door engaging portion; a detection portion that generates an electrical signal in response to movement of said member away from said operational position; a wireless communication portion; and circuitry responsive to said signal from said movement detection portion, and operatively coupled to said wireless communication portion; wherein said detection portion includes: a part supported for movement to and from a predetermined position in relation to said support, said member being movably supported on said part; a first resilient portion which yieldably urges movement of said part away from said predetermined position in relation to said support; and a second resilient portion which yieldably urges movement of said member away from said operational position in relation to said part, said second resilient portion urging said member away from said operational position with an effective force greater than an effective force with which said first resilient portion urges said member away from said operational position.