Bicolour Level Gauges (Porthole or Long Glasses) -Materials:Carbon Steel,Stainless Steel -Operating Conditions:Water/steam through 225 bar (3000psi) -With illuminator (explosion-proof on request) -Optionals:Remote transmission by means of mirrors, Closed circuit television, Fibre optics (RED CHERRY System),etc. -Spare Glasses,Gaskets and Mica