Proflow Vacuum Triggered Safety Switch, Hobbs Switch, 3 Terminal, Norm Open Or Norm Closed Option, Adjustable Set Point 9-17"Hg, 1/8 in. NPT, Each

Proflow's Vacuum adjustable safety switches have been designed to,for example sense when vacuum drops below a specific minimum set point and activates vacuum pump, or wired to activate a water/methanol injection when vacuum drops below the set point. This heavy-duty vacuum switch is made of premium materials to serve as a quality replacement. Note: Choice of Normally Open or Normally Closed wiring Factory Pre Set To 12"hg Will switch on OR off at set point Set point is adjustable from 9-17hg +-2hg