Siemens OOH941 Multi-Criteria Fire Detector

The Siemens OOH941 is an intelligent, addressable multi-criteria fire detector that combines optical and thermal sensing with Siemens Advanced Signal Analysis (ASA) technology to deliver superior false-alarm immunity and faster genuine fire response. UL 268 7th Edition listed, it features built-in ISOtechnology short-circuit isolation, a tri-color 360-degree status LED, and self-diagnostic testing every ten seconds. It is fully compatible with the Cerberus PRO signaling line circuit and Model DB-11 series mounting bases.