The circuit employs the functions of reed switches to produce a gate alarm that is powered by a universal AC/DC power supply. The circuit employs the functions of reed switches to produce a gate alarm ...
If you are tired of your gate motor, alarm, or electric fence’s battery dying every few months from load-shedding, Lalela has the solution. Lalela offers lithium iron phosphate (LiFePO4) batteries ...
This burglar alarm system circuit is using a infrared proximity detector that triggers an alarm when the rays falling on its sensor are interrupted. It is different from others burglar alarm systems ...
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