Infrared float switch | Pex PartsInfrared float switch, used for Emerson Liebert PEC, PEX, GPEX VERTICAL OR HORIZONTAL MOUNT NO or NC Ideal for use in conjunction with solenoid valves, water pumps, etc., this float switch can be made NO or NC (Normally Open or Normally Closed) by the orientation of the float. Horizontally mounted so the float falls, when the fluid level rises it will switch ON at maximum float height. Mounting the switch so the float rises upwards when the fluid