Position: Index > Lock Circuit >

The electric lock circuit of Guanghua burglarproof door bell

2017-01-06 04:29  
Declaration:We aim to transmit more information by carrying articles . We will delete it soon, if we are involved in the problems of article content ,copyright or other problems.


The electric lock circuit of Guanghua burglarproof door bell
See as the figure, the circuit consists of the door control magnetic switch, the relay control circuit, ding-dong door bell sound making circuit, the simulated police car sound circuit and so on. It can be the door bell, or used as the burglarproof alarm of pry.