Keyestudio RJ11 EASY plug Reed Switch Module for Arduino Starter STEAM

This Keyestudio RJ11 EASY plug Reed Switch Module is a reliable non-contact switch designed for students, makers, and educators building interactive STEAM projects. It allows you to detect magnetic fields easily, making it perfect for security alarms or position-sensing applications. The sensor is designed to work seamlessly with an EASY plug control board for quick, solderless prototyping.

Non-contact magnetic sensing

The module features a sensitive reed switch containing two ferrous materials. When a magnetic field is brought close, these materials pull together to close the switch, opening again once the magnet is removed.

Solderless RJ11 connection

Designed for rapid prototyping, this module uses the EASY plug system. It connects directly to your EASY plug control board using a standard RJ11 cable, eliminating messy wiring.

Practical alarm and switch applications

Because it operates without physical contact, this sensor is ideal for mounting on doors or windows to create custom alarm systems. It can also function as a proximity switch in robotics projects.

Wide operating voltage range

The module operates reliably on a working voltage of DC 3.3V to 5V, making it compatible with a variety of microcontrollers. It draws a working current of 20mA or more during operation.

Compact and lightweight design

Measuring just 39mm by 20mm by 18mm and weighing only 4.6 grams, this compact sensor fits easily into tight spaces. It is built to operate in temperatures ranging from -10 to +50 degrees Celsius.

Precise detection limits

The sensor detects magnetic fields at a close range of 10mm or less, ensuring highly accurate triggering. A dedicated Wiki page tutorial is available to help you get started with your code quickly.