Arduino Water Level Sensor Module

Detect Water Levels with Ease

The Arduino Water Level Sensor Module is a simple, low-cost sensor designed to detect the presence and depth of water. Widely used in Arduino and microcontroller projects for water tank monitoring, rain detection, overflow alerts, and irrigation systems.

Key Features

• Operating Voltage: 3.3V – 5V DC (Arduino compatible)
• Output: Analog signal proportional to water level
• Sensing Length: ~40mm
• Low power consumption
• Easy to interface with Arduino, ESP8266, ESP32, STM32, and other MCUs
• Onboard power indicator LED
• Compact PCB design with exposed sensing traces

Common Applications

• Water tank level monitoring
• Rain / rainfall detection
• Flood or overflow alert systems
• Automatic irrigation control
• Aquarium water level sensing

Package Includes

• 1 × Water Level Sensor Module

Perfect for beginners and advanced makers alike — plug it into your analog pin and start reading water levels in minutes!