A monitoring system comprises a module (55) having at least one sensor (120)and preferably skin and ambient temperature sensors (120) within a housing(95). The device may be durable or disposable. The housing (95) may beprovided with certain surface features and shapes to facilitate mounting onand interface with the skin of the wearer for more accurate temperaturemeasurement. A receiver (not shown) may be provided to obtain and display datafrom the module (55). The module (55) may also display the output data. Theoutput data comprises both detected and derived data relating to physiologicaland contextual parameters of the wearer and may be transmitted directly to alocal recipient or remotely over a communications network. The system iscapable of deriving and predicting the occurrence of a number of physiologicaland conditional states and events and reporting the same as output data.
