What is a fire alarm bell ?

We often see red fire alarm bell in  doorways, corridors and stairs places of large populations which are factories, residential buildings, commercial office buildings, etc, So, What exactly is a fire alarm bell ?

Red fire alarm bell is a warning device used to remind people’s attention in some occasions. The alarm bell can be seen in many places such as schools and factories. The difference between a fire alarm bell and a general alarm bell is that the automatic fire alarm system is a weak current system. The general alarm bell working voltage is DC24V, and a few are AC220V.

Red fire alarm bell is a device used to remind personnel on the scene of a fire at the scene of a fire. When a fire occurs on the scene and is confirmed, it can be activated by the fire alarm controller of the fire control center, or by a manual alarm button installed on the scene Start directly. After the alarm is activated, the siren emits a strong audible alarm signal to achieve the purpose of reminding on-site personnel

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