PERSONAL PROPERTY ALARM SYSTEM

摘要

The present invention relates to a personal property alarm system for monitoring the security of personal property using two-way coded radio signalling. The system comprises an alarm unit to be fixed to an item of property to be protected and a personal unit to be carried by a property owner. The alarm unit and the personal unit each comprise a transceiver to transmit and receive signals between each other. The alarm unit also compris es a motion sensor that is activated by predetermined movement of the property. The personal unit is operable in an alarm mode in which an alarm is activate d to alert the property owner. The alarm unit is normally operable in a standb y mode and is switched from the standby mode to an emergency mode when the motion sensor is activated. The personal unit alarm mode is activated when i ts transceiver receives an emergency signal from the alarm unit or when no standby signal has been received from the alarm unit. A personal unit may be tuned to communicate with a plurality of alarm units and/or a plurality of other personal units.