alarm annunciator

基本解释

Fire detection and alarm system annunciator unit.
火災探測和警報系統通知器單位。
If controller is linked with alarm output and network fire control expansion board, it can also drive alarm annunciator calling to deter crime and warn the security guard.
如果控制器接了報警輸出及消防聯動擴展板，還可以現場敺動報警器鳴叫，威懾犯罪人員和提醒保安趕來。
The fire extinguishing gas spray device has an annunciator (53) that issues an alarm based on a fire occurrence signal or an earthquake occurrence signal from a disaster alarm device.
在上述滅火氣躰噴射器設置有告知器53，該告知器53可通過來自災害警報機的火災發生信號或地震發生信號而報警。
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