Light intensity control alarm circuit

Published:2011/4/22 23:05:00 Author:Nicole | Keyword: light intensity, alarm | From:SeekIC

This circuit is used by hunters and fishermen when they want to work at daylight. Because the flashlight or indoor light can trigger this circuit, so it also can be used as fire alarm and burglary alarm circuit. Only the light turns off, the alarm voice will stop.



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