The TX7100 intelligent addressable optical smoke detector is the ideal device for most applications, due to its spiffing linear response to a wide variety of different types of smoke patterns. Secure and speedy communication through the on-board processor enables the detector to make its own decision, resulting in greater automation. In the event of fire, the integral microprocessor analyses the signal according to factors such as signal strength and rate of increase, then confirms these patterns with the pre- programmed fire scenarios and smoke patterns, for a faster and safer response. Once it is confirmed, the LED indicates the sensor status and parallel sending communication signal to the control panel. The TX7100 detector is compatible to the TX7004 analogue intelligent fire alarm control panel, produced by single manufacture T&A, to avoid addressable communication compatibility problem.