Instruction Manual pH 5+, pH 6+, Ion 6+-18-8. REPLACEMENTS AND ACCESSORIESPart number Ordering CodeItem Description EutechInstrumentsOaktonInstrumentspH 5+ with ATC probe ECPH501PLUS01X244911 35613-50pH 5+ with pH and ATC probes — 35613-52pH 5+ with pH and ATC probes and solutions inhard carrying caseECPH502PLUSK01X244912 —pH 5+ with pH/ATC probe and solutions in hardcarrying caseECPH503PLUSK01X244913 35613-54pH 6+ with ATC probe ECPH601PLUS01X245025 35613-20pH 6+ with pH and ATC probes — 35613-22pH 6+ with ATC probe and solutions in hardcarrying caseECPH601PLUSK01X245028 —pH 6+ with pH and ATC probes and solutions inhard carrying caseECPH602PLUSK01X245026 —pH 6+ with pH/ATC probe and solutions in hardcarrying caseECPH603PLUSK01X245027 35613-24Ion 6+ with ATC probe ECION601PLUS01X256409 35613-80Ion 6+ with pH and ATC probes and solutions inhard carrying caseECION602PLUSK01X256410 35613-82ATC Probe, Stainless Steel, 84 x 3 mm PH5TEM01P01X021804 35613-05pH electrode, plastic, gel-filled, single-junction ECFC7252101B01X099412 59001-65pH electrode, plastic, gel-filled, double-junction ECFC7252201B01X099417 35641-51pH electrode, glass, refillable, double-junction ECFG7370101B93X218819 35805-04pH/ATC electrode, plastic, gel-filled, single-junctionECFE7352901B01X218964 35811-71