This water level sensor is a drop level
recognition sensor; it is easy to use and economical. Measurement is obtained
by having a series of parallel wires exposed to water droplet traces to
determine the water level. The output values are analog and can be read
directly by a development board as arduino. He owns:
Power supply: 3/5 VDC
Analog output
Operating current: less than 20mA
Ideal to detect the level of a liquid, or to
trigger the alarm for example
