Review / '5 floor 1 km wireless water level indicator overflow empty alarm 4 levels brass sensors patented technology model wl a ra5f reviews' Reviews Buying the right camera, lens, accessory or ...

Most of the homes in the area where [Raikut] lives have tanks on the roof to hold water. Each is filled from a well using a pump, with gravity serving as a way to pressurize the home’s water supply.

Here is another interesting hobby circuit built around the popular and inexpensive 555 IC. It is nothing but a water sensor, which you can be configured as a rain alarm, water tank overflow alarm, ...