A security network for {HEAD ~ a building} using at least one RFID reader to communicate with at least one RFID transponder to provide the radio link between each of a number of {TAIL ~ openings} and a control function capable of causing an alert in the event of an intrusion 
A security network for { HEAD ~ a building } using at least one RFID reader to communicate with at least one RFID transponder to provide the radio link between each of a number of { TAIL ~ openings } and a control function capable of causing an alert in the event of an intrusion
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH