The Hoshizaki 453861-04 Reed Switch is an electrical component that switches when subjected to a magnetic field, and this closes or opens a circuit as a magnet enters the range. This move enables the integrated control system to identify position variations varying on the magnetic closeness. It is usually applied to indicate open or closed conditions to internal controls, which aid in... https://partsfe.com/453861-04-hoshizaki-reed-switch