Reed switch
= Reed switch
{wiki=Reed_switch}
A Reed switch is an electromagnetic switch that operates by using a pair of ferromagnetic contact blades housed in a sealed glass envelope. These blades are normally open (not in contact with each other) and are designed to close when exposed to a magnetic field. \#\#\# How It Works: 1. **Magnetic Field Activation**: When a magnet comes close to the switch, the magnetic field causes the two contact blades to attract each other.