Patent ID: 7612664

Claim:
A refrigerated container, comprising a security device and a door composed of a first door panel and a second door panel, said security device including: a detection plate having a first end fixed to an inner side structure of the first door panel, and a second opposite end as a free end extending towards the second door panel and being positioned behind an inner side structure of the second door panel when the door is closed; a displacement sensor fixed to the inner side structure of the second door panel and positioned adjacent to the free end of the detection plate so as to cooperate with the free end of the detection plate and to thus detect a relative displacement between the two door panels; a monitoring module electrically connected to the displacement sensor to receive and process outputs from the displacement sensor; and an antenna electrically connected to the monitoring module to receive and emit outputs from the monitoring module; wherein said displacement sensor, monitoring module and antenna are separately arranged in the door, and said monitoring module is arranged within a heat insulating layer in the first door panel or the second door panel, and said antenna is provided at an outer side of the first door panel or the second door panel.