Tyndall effect wireless addressable optical smoke detector with isolator designed for operation with Comelit wireless expansion modules. The detector has 360° visibility LED indication and a built-in buzzer for additional signalling in the event of a fire alarm (can be excluded) and for searching within the system. To prevent unauthorised disassembly or removal, the detector can be locked on at the base. Equipped with an anti-tamper feature to indicate opening. The digital signal processing algorithms of 45RFU100 make it particularly sensitive to detecting smoke, even in the early stages of a fire breaking out. Device enrolling is easy and instant. Communication distance between detector and expander (in open space) over 1000 m. Two-way radio communication with proprietary communication protocol. Batteries (3 x CR123A) with maximum life up to 10 years (depending on usage and settings). Operating temperature -10°C / +55°C. Dimensions (including base) Ø108x76 mm. Material: ABS. IP30 protection rating. Approved to EN 54-7 and EN 54-25.