More then 30 types of alarm circuit, sound circuit and Door bell projects are published; the alarm circuit provides all of the functions for burglar alarms, temperature, moisture and other type of security or general system.
Alarm circuit can be used with a variety of security systems and other systems where physical parameters such as temperature, airflow, pressure, illumination etc, are continuously monitored. A substantial change in the electrical analog of the parameter being monitored will then activate the alarm device. Because of the low battery voltage-sensing feature, this IC is particularly useful in battery-type applications.
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