Cleveland Controls DDP-109-436 Sensing Switch

Air Pressure Sensing Switch, .05" ± .02" to 2"w.c., Change Contacts on Decreasing Pressure at .20"w.c. ± .02"W.C., .05" ± .02" to 2"w.c, Change Contacts on Increasing Pressure at 1.35"w.c. ± .05", 120v-277Vac, 1/2 Psi Maximum Pressure, Air or Combustion By Products that will not Degrade Silicone