Automatic Water Level Controller Without Ultrasonic Sensor

I'm gonna show you how to make an Automatic Water Level Controller.Which will cost you less than 4$.This circuit will detect the water level, and once it reaches the low level it enables the motor pump, and when the water reaches the higher level the motor pump stops.Video :
By: vox911

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[original story: Instructables]

Instructables 07 Dec 09:58