Bosch FAP-425-DOT-R Dual Optical and Thermal Sensor Analog Addressable Detector

A multi-sensor analog addressable detector combining dual optical beam measurement with a thermal sensor in the same housing. The dual beam arrangement enables early detection of fine and light-colored smoke, while the thermal channel activates in rapidly developing fires. It is used in volumes where false alarms are costly, such as shopping centers, museums, and large office floors. Since the address can be set both from the panel and from the device, flexibility is provided when adding to existing installations.