Wireless addressable sounder designed for operation with Comelit wireless expansion modules. Equipped with 360° visibility LED indicators and a built-in audio alert device for additional signalling in the event of a fire alarm and for searching within the system. To prevent unauthorised disassembly or removal, it can be locked on at the base. Equipped with an anti-tamper feature to indicate opening. 45SCI100 has 4 sound levels and 32 different tones. Maximum sound power 92 dB(A) ±5 dB @ 1m (high volume and main tone 27). 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 (4 x CR123A) with maximum life up to 8 years (depending on usage and settings). Operating temperature -10°C / +55°C. Dimensions (including base) Ø116x90 mm. Material: SAN. IP31 protection rating. Approved to EN 54-3, EN54-23 and EN 54-25.