BOSCH-INCENDIO FNM-420U-A-BSRD Low-absorbent self-powered LSN/LSNi siren base

Self-powered LSN/LSNi low absorption siren base. Color Red. 32 tone variations available, delay-free synchronization. Volume up to 93 dB (A). It does not require auxiliary power supplies. The operation of the siren is guaranteed, for 30 minutes, even in the event of an interruption of the loop line on both sides. Integrated double isolator. IP42 degree of protection. Includes FNM-COVER-RD coverage. Batteries included. CPD certified according to EN54-3, EN54-17.