Featuring 316L stainless steel housing, Liquiphant FTL31 works in process temperatures up to 302°F and pressures to 580 psi. Unit is suitable for tanks, vessels, and pipes used in chemical and oil/gas industries. Liquiphant FTL33, featuring stainless steel enclosure with optional IP69K protection, meets food industry requirements with 3-A and EHEDG certificates. Based on vibrating tuning fork technology, both switches are unaffected by foam formation, changing conductivity, or density.