An optical light diffuser component and a method of producing the same. The sensor includes a sensor die and a buffer member that are assembled for attachment to a process fluid conduit. A modified flow of the audio visual data is then received from the central server at the network device in response to the control command. A second estimate of the response is computed using a second estimation process having a second latency, higher than the first latency, and a data channel that is addressed to the receiver is decoded based on the second estimate. Methods of forming multi-layer films are also provided. In particular, embodiments of an extended smoke alarm system having wireless-signal-send-and-receive functionalities wherein the system includes one or more flashlights having at least wireless-signal-receiving functionality are detailed.