一,Introduction:
The reed switch is an electrical switch operated by an applied magnetic field.It
consists of a pair of contacts on ferrous metal reeds in a hermetically sealed glass
envelope. The contacts may be normally open, closing when a magnetic field is
present, or normally closed and opening when a magnetic field is applied. The switch
may be actuated by a coil, making a reed relay,or by bringing a magnet near to the
switch. Once the magnet is pulled away from the switch, the reed switch will go back
to its original position.
二,Dimensional Drawing: