Water Leak Detection Sensor Simple Water Detection Sensor With Digital Output Water Detector Sensor Usage is very simple: connect the minus (-) pin to ground, connect the plus (+) pin to 3 to 5V DC and then the output signal pin (S) goes to your microcontroller. Simple Water Detection Sensor with Digital Output show in shop ... Pet Bowl Water Level Sensing By M. LeBlanc-Williams intermediate The output voltage does vary a bit with how much water is detected, but honestly we recommend just using it as an on or off type sensor. This palm-sized cherry-red water sensor is simple and easy to implement in your wet-dry-sensing project. $3.80 AUD, inc GST. $3.45 AUD, exc GST. In... Keep wet things wet and dry things dry by detecting when the dry things get wet by accident! OLS500D3L - Datasheet PDF - Float, Level Sensors - Cynergy 3 Avatar water-bending skills not included!, Digital Output , Water Detection Sensor