A <b><a href="https://xuruiswitch.com/product-category/reed-switch-suppliers/">Reed Switch</a></b> is a simple yet highly reliable electrical component that operates using a magnetic field. It consists of two thin metal reeds sealed inside a glass tube, which close or open the circuit when exposed to a magnet. Reed switches are widely used in applications such as security systems, door and window sensors, automotive electronics, and industrial automation. Their compact size, low power consumption, and fast response time make them ideal for precise switching tasks. Because they are sealed, reed switches are also resistant to dust and moisture, ensuring long-lasting performance in demanding environments.