pressure switch, Adjustment range: From 0.5 bar to 6 bar., Maximum permissible pressure: 16 bar., Switching differential: Adjustable., Connections: G1/4 internal thread and G1/2 external thread., Electrical connection: DIN EN plug 175301., Contacts:, Body Material:, Material of sensing element: Stainless steel (1.4104 + 1.4571)., Degree of protection: IP54.