Alarms and Indicator Circuit diagrams

Alarms & Indicator electronic circuits list:

Power supply failure alarm

Theft preventer alarm

Rain Alarm

A simple electronic buzzer

Water Level Indicator with alarm

Melody generator for greeting cards

4 in 1 burglar alarm

Brakelight Flasher

Car anti theft wireless alarm.

Fire Alarm

Daylight Alarm

Factory Siren

Police Siren

Big Ben Sound

Beeper

Infra-red (IR) beam alarm/ proximity detector

Timed Burglar Alarm

 

 

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