Country Bell

Wireless telephone alert system: Taking a standard telephone line ring voltage from 80V-120V down to [url removed, login to view] 500 mah down for a circuit board to be initiated when it receives the voltage through a telephone jack that is wired to the positive and negative terminals that usually house two AA batteries. Keep in mind it will always be wired into the telephone line receiving a current of 40V-50V and can only be triggered when the phone begins to ring.

工程 生产 制造设计 产品设计 产品采购

项目ID： #6424743

关于项目