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Digital Dialler | 数码拨号器

A device that electronically dials through the phone line to the monitoring facility ensures that contact has been made, and sends an electronic message indicating alarm activation low battery, arming/disarming etc.

 

该设备能通过电话线数字上拨号到给监控设施，确保已经联系，并且发送电子信息，内容包括触发警报，低电量，布防/撤防等

 

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