The S 155-Plus compact all-in-one ion chromatographs are table top instruments for anion or cation chromatography as a single unit at an appealing price level. As a “one-box” instrument they contain the eluent pump, manual injector, column oven, auto-suppressor unit (anion version only) and a conductivity detector. The S 155-Plus ion chromatographs are fully functional instruments, completed only with a chromatography data handling system of choice.