
The DC 3V–5V 20mA Rain Water Level Sensor is a simple and compact water detection sensor designed to detect rainwater, water presence, and changes in water level. It works by detecting the conductivity of water across the exposed sensing tracks.
The sensor is suitable for Arduino, ESP32, Raspberry Pi, and other microcontroller-based projects. It can be used for rain detection, water-level monitoring, leakage detection, weather stations, and DIY automation systems.