DESCRIPTION
simple water level alarm circuit that will produce an audible alarm when the water level reaches a preset level.
this circuit can be powered of 3v battery and easy to use.
PARTS
resister 100k,1k
capacitor 2.2uF
555 timer ic
battery 3v
buzzer
ABOUT
probes A and B can be made of two insulated copper wires.
place the probes at the position where you have to sense the level.
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