PNOMEK ADJUSTABLE PRESSURE SWITCHES PP Series Pressure Switch Provides Contact When It Comes To The Set Pressure. By removing the socket bolt and the wire screwdriver provided beside the switch, the desired pressure can be adjusted. It can be used in a wide variety of places due to its wide pressure range. The Switch Has Normally Open and Normally Closed Contacts. Produced in High Technology Benches with G1 / 8 “and G1 / 4” Male Thread Connection, This Switch Offers Superior Performance To The User. Pressure Ranges PP G1 / 8 “0.5 – 2 Bar PP G1 / 8 “0.5 – 8 Bar PP G1 / 8 “0.5 – 12 Bar PP G1 / 4 “0.5 – 2 Bar PP G1 / 4 “0.5 – 8 Bar PP G1 / 4 “0.5 – 12 Bar PP G1 / 4 “5 – 25 Bar PP G1 / 4 “5 – 60 Bar PP G1 / 4 “20 – 120 Bar PP G1 / 4 “20 – 250 Bar