Remote anti-theft alarm
Source: InternetPublisher:MartinFowler Keywords: Anti-theft alarm sensor CMOS Updated: 2021/12/20
It is a long-distance anti-theft alarm circuit. The sensor is placed at the location that needs to be monitored and connected to the alarm circuit in the duty room through leads and plugs
. As long as the sensor is touched, an alarm will sound in the room. The alarm circuit is mainly composed of IC I CMOS 6 inverter integrated circuit Z 40106. It is composed of
4-channel driver audio circuit IC 2 9561 and buzzer etc.
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