This project consists of a box containing circuitry and the water probe assembly. When water touches the probe assembly, an alarm will sound. A relay is provided to switch on a water pump. As long as the probe assembly is in contact with the water, the pump switch will remain on. The alarm can be shut off with a switch once the flooding has been detected. Optionally, a 12V lantern battery can be used as a back-up power source if the power from the wall transformer is interrupted.
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