Bell alarm circuit diagram

Published:2011/9/26 22:05:00 Author:Rebekka | Keyword: Bell alarm circuit | From:SeekIC

SNS-200P1 is the human body pyroelectric infrared alarm bell. SNS-200P1 uses three 5# batteries, portable design is ideal for alarm products. When the function switch isin the OFF position, the power off; In the CHIME position, it can be used for doorbell, when someone approaches, it will make ding-dong sound; In the ALARM position, it can be used as alarm, when some people close to the sound,thethe warning will be issued. The entire circuit is composed of body infrared detection sensor, the body infrared signal processing circuit, alarm audio circuits and audio amplifier circuit.



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