The Water Level Sensor Module is an easy-to-use sensor that detects the level of water by measuring the conductivity across its exposed parallel traces. As the water level rises, more of the sensing area comes into contact with the liquid, resulting in a corresponding change in the output signal.

The module provides an analog output, allowing users to measure varying water levels rather than simply detecting the presence of water. It is widely used in water tank monitoring, automatic pump control, smart irrigation systems, rainwater collection, and home automation.

Compatible with Arduino, ESP32, ESP8266, Raspberry Pi (via ADC), STM32, and other microcontroller platforms, this sensor is an excellent choice for DIY electronics, IoT, and educational projects.

Technical Specifications

• Operating Voltage: 3.3V – 5V DC
• Output Type: Analog (AO)
• Detection Method: Conductivity-based water level sensing
• Interface: VCC, GND, AO
• Operating Current: <20mA
• Sensor Area: Exposed conductive traces
• Module Size: Approximately 62 × 20 mm
• Operating Temperature: -10°C to +60°C

Applications

• Water tank level monitoring
• Automatic water pump control
• Overflow detection
• Smart irrigation systems
• Rainwater harvesting systems
• Aquarium water level monitoring
• Home automation