BS 248 (Audible and Visual Warning Module Siren)
Audible and Visual Warning Module (Siren)
In the event that any environmental parameter of the environment takes a value outside the defined normal value range, it informs the authorities visually/audioly by means of a siren and light. It can be positioned at the desired distance. Thanks to this feature, it can be extended out of the room or to the rooms where security personnel are present, with cat-6 cable.
Thanks to the battery on it, it continues to work in case of power failure.