A Water Sensor is a device that detects the presence and/or level of water. It can be used to detect the presence of water leakage, fluid levels, level of ground water, and other water related conditions. Seeed Studio offers a wide variety of water sensor options to suit different applications. These range from basic water level sensors which measure the level of liquid, to more advanced sensors that measure electrical conductivity or other properties. Seeed Studio also offers add-on accessories to customize the water sensor to meet specific requirements.