Just a couple of transistors are enough for implementing a simple water
level alarm circuit and used for getting a warning signal when the water
level inside a tank nears the overflowing level. The two transistors
are configured as a high gain, high sensitive switch, which also is
capable of generating a tone when the shown terminals get bridged
through the terminals coming in contact with the water inside the tank.
The water offers just about the right resistance value across the
specified points of the circuit for initiating high pitched tone or the
desired warning alarm.proposal Water Level Alarm Circuit
Just a couple of transistors are enough for implementing a simple water
level alarm circuit and used for getting a warning signal when the water
level inside a tank nears the overflowing level. The two transistors
are configured as a high gain, high sensitive switch, which also is
capable of generating a tone when the shown terminals get bridged
through the terminals coming in contact with the water inside the tank.
The water offers just about the right resistance value across the
specified points of the circuit for initiating high pitched tone or the
desired warning alarm.
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its cool