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wireless alarm with multiple detective heads circuit

2016-11-19 00:07  
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wireless alarm with multiple detective heads circuit
wireless alarm with multiple detective heads circuit
wireless alarm with multiple detective heads circuit
This alarm separates the detection part and alarm part,and an alarm can be with multiple detective heads.The detection part and alarm part can communicate by wireless wave. It is divided into wireless alarm receiver as well as wireless alarm detection and transmitter. The wireless alarm receiver is formed by the 315MHz wireless data receiver module, decoding IC PT2272-M4, monostabillity circuit and audio generator. Wireless alarm transmitter and detection has many detective circuits.The circuit is shown as picture.