This is a simple arduino project for a soil moisture sensor that will light up ... Insert the 2 probes (wires, pcb) in the dry soil and measure the resistance value and then pour water and measure it ...

Turbidity is an internationally recognized criterion for assessing drinking water quality, and a Turbidity Meter is an optoelectronic ... my old TSD-10 turbidity sensor lifted from a defunct washing ...

This gives you plenty of choices, but what Arduino sensors are out there, and how do you use them? 1. Water Level Sensor for Leak Detection Electronics and water are famous for their destructive ...