Patent ID: 7109859

Claim:
A personal wireless device with a unique electronic ID or signature, the device being typically carried by or used on a regular basis by a user, the device comprising: a transceiver for telecommunications functionality, said transceiver being capable of communicating with a network; said wireless device defining a slot adapted to receive an interchangeable sensor module; an optional interchangeable sensor module adapted to be received in said slot; said interchangeable sensor module having at least one sensor associated therewith, said at least one sensor having the capability of detecting, identifying and quantifying the level of at least one of a plurality of hazardous agents in an area surrounding said sensor module; said sensor module further having a unique electronic ID for identifying the type of said sensor module; said wireless device having an interrogator function for reading the electronic ID of said interchangeable sensor; said sensor module being in intermittent communication with a data storage device; said wireless device having a user interface for said user to direct said wireless device to communicate the identity and level of at least one said hazardous agent detected by said sensor module at a specific point in time to said data storage device; said wireless device further having a notification alert function responsive to said sensor module for emitting an alert that the sensor has detected the level of at least one hazardous agent which said user has stored in said data storage device at said specific point in time; said wireless device having a microprocessor or microcontroller for controlling the transceiver, the sensor module, the user interface and the notification alert function; and said wireless device having the capability of sending said notification signal to remote receivers through said network via said transceiver.