Water Level Sensor – Analog Liquid Level Detection Module

The Water Level Sensor is a simple and cost-effective solution for detecting the presence and level of water using exposed conductive traces on the sensor surface. As the water level rises and covers more of the sensor, the electrical conductivity changes, resulting in a varying analog output signal that accurately represents the water level. This makes it ideal for real-time liquid level monitoring.

The module operates within a voltage range of 3.3V to 5V, allowing it to work smoothly with popular microcontrollers such as Arduino, Raspberry Pi, ESP32, ESP8266, PIC, AVR, and other development platforms. Its analog output makes it easy to read water level changes through a microcontroller’s analog input pin.

Designed with a corrosion-resistant PCB, the sensor offers improved durability and consistent performance when used in water-based applications. Its high sensitivity allows it to detect even small changes in water level, while low power consumption makes it suitable for continuous monitoring and battery-powered systems. The compact and lightweight design ensures easy installation in tight or space-limited setups.

The Water Level Sensor is widely used in water tank level monitoring, automatic pump control systems, smart irrigation solutions, flood detection and water leakage alarms, weather monitoring projects, IoT-based systems, home automation, and educational laboratory projects for schools and universities.

Choosing this water level sensor means selecting a reliable, affordable, and easy-to-use module. Its simplicity, accuracy, and wide compatibility make it an excellent choice for both beginners learning electronics and professionals developing water monitoring and automation systems.