Monitoring and warning system for individuals working under hazardous pperating conditions

A monitoring and warning system for firefighters and individuals exposed to similar risks comprises a number of monitoring, warning and control devices (1, 9 to 16) as well as a telemetry module (17) for transmitting information to a base station and for receiving commands. All units of the system are connected in a galvanic or galvanically separated manner to a shared open or closed bus (8) and, in fact, are used either for master/master operation or for master/slave operation. The system functions rapidly and in a noise-free manner while having a low level of complexity with regard to connections and being able to be easily retrofitted with additional units, and can also be used in potentially explosive areas.