A Water Level Sensor is a device used to detect the level of water in a tank, reservoir, or other bodies of water. It can measure levels accurately and provide real-time data, helping to manage water resources effectively. These sensors are commonly used in applications like irrigation systems, aquariums, and industrial processes. There are various types of water level sensors, including ultrasonic sensors, float switches, and capacitive sensors. Each type operates differently, but they all serve the same purpose: to monitor water levels and prevent overflow or dry running in pumps and other equipment.