Convenzionali Zones Selezionare Loops Selezionare IP Selezionare dB Selezionare Consumo Selezionare Type Zones Loops IP dB Consumo BS-655 Optical Smoke Detector BS-657 Optical smoke and thermal detector BS-660 Rate of rise heat detector BS-661/A Waterproof rate of rise heat detector BS-655/A Optical smoke detector BS-657/A Optical smoke and rate-of-rise heat detector BS-660/A Rate-of-rise heat detector