Alarm Sounders

Intruder alarm sounders and bell boxes for audible deterrence and occupant notification in domestic and commercial security installations. Our range includes self-powered external siren boxes with integral battery and strobe, internal piezo sounders, and combined indoor sounder-strobe units, in wired and wireless formats from Texecom, Pyronix, Ajax, and Clifford & Snell.
External bell boxes must be installed in a visible, prominent position and tamper-protected to EN 50131-4 requirements. Internal sounders are required on all zones and must produce sufficient volume to alert occupants throughout the building. We stock siren boxes and sounders for all major alarm platforms with fast UK dispatch and competitive trade pricing at Evolution Electronics.