Option: „S“ HITY 2000 Option: „S“ for HITY 2000 HITY 4000 Option: „h“ Option: „t3“ FS 500M/T obsolete, replacement FS 510M;FLOW SWITCH MF 3000 HITY 2000-60 HITY 2000-60 RANGE 0-100RH OUTPUT 4-20MA HIT2000 obsolete, no direct replacement - alternative HITY 4000;r.F.-Meßfühlerelement HIT 2000 R.H.-SENSING ELEMENT