DOOR

SENSORS FOR MONITORING OPEN AND CLOSED STATES OF VEHICLE DOORS; WIRELESS DOOR SENSORS FOR USE IN VEHICLES; WIRELESS SENSORS FOR DETECTING AND REPORTING OPEN AND CLOSED STATES OF DOORS IN TRUCKS, TRACTORS, TRAILERS, CHASSIS, AND HEAVY DUTY VEHICLES; ACCELEROMETERS FOR DETECTING MOTION OF DOORS IN VEHICLES; MAGNETIC SENSORS FOR DETECTING OPEN AND CLOSED STATES OF DOORS IN VEHICLES