Soil-Moisture-Sensor-Water-Level-Sensor-Module-Whadda-WPSE303-p-The-Whadda-WPSE303-package-includes-a-water-level-sensor-and-a-soil-moisture-sensor-br-If-the-boards-have-water-covering-the-sensor-parts-an-analogue-value-will-be-available-at-the-SIG-connection-p-p-The-water-level-sensor-can-sense-up-to-4-cm-of-water-This-way-you-can-track-whether-or-not-your-aquarium-or-your-pet-s-water-bowl-still-has-enough-water-in-it-p-p-You-can-use-the-soil-moisture-sensor-to-keep-an-eye-on