KY-025 Reed Relay Sensor Module (Magnetic Sensor)

The KY-025 Reed Relay Sensor Module is a reliable and multifunctional sensor designed to detect magnetic fields. This module is widely used in door and window security systems, water level measurements (inside pipes), as well as in various automation projects. Thanks to reed relay technology, it generates a signal for Arduino and other microcontrollers by closing the electrical circuit when a magnet approaches. It is an excellent choice for electronics enthusiasts, robot builders, and DIY projects due to its simple interface and high sensitivity. As a magnetic sensor, it provides reliable and …