Water Level Sensor

Made a water level sensor for water coolers. 

Also simultaneously there is a water level monitoring system for most of the water tanks with the level display.

The water level monitor and control system consists of a couple of transistors, power supply , relay and solenoid system.

A solenoid is a hydraulic and pneumatic switch. Whenever the level of the water goes down below a level then the solenoid is shut off. Whenever the water level is below then the solenoid opens up to fill in the water to the desired value.

Sorry was busy with the college work. Gonna put up the complete circuit and photos by this thursday.

Thank you