Optical Smoke Detector BS-655
The detectors (BS-655) photoelectric smoke detector, BS-660 rate of rising heat detector, BS-657 optical-heat detector, and BS-668 fixed temperature heat detector were created to offer quick detection in case of fire.
The detectors (BS-655) photoelectric smoke detector, BS-660 rate of rising heat detector, BS-657 optical-heat detector, and BS-668 fixed temperature heat detector were created to offer quick detection in case of fire.