Sensor Speaker is designed to play a message pre-recorded in the internal speech synthesised LSI when the sensor detects movement of people or vehicles.
Sensor Speaker includes a passive infrared sensor to detect the infrared (i.e. body temperature) emitted from a human body or vehicle, it then triggers the speech synthesis LSI
(Large Scale Integrated Circuit) where the message is digitised and stored. A wide range of applications are possible such as welcoming messages at building entrances, alarm or warning messages at construction sites and other dangerous areas.