The Sounder with Flasher is a kind of audible and visual alarm device used to warn people in field when fire occurs ,The Intelligent Loop Powered Enhanced Open Area Sounder
Beacons are alarm devices which include an area sounder and
a red beacon. Both the sounder and the beacon provide
synchronized signaling (audible and visual) from an Axis AX
Series Intelligent Fire Alarm Control Panel’s SLC (Signaling Line
Circuit) loop. Each Intelligent Loop Powered Enhanced Sounder
Beacon receives both power and communications from the
signaling line circuit.