E402-4BS United Temperature Switch, 25-100°FThe 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities. Dual and triple switch versions provide multi output for alarm and shutdown, pre alarm and alarm, high low limit or level staging functions. A wide variety of microswitch and process connection options, along with a weather tight enclosure, make the 400 Series an ideal choice