CSKC50M Reagecon 50,000 µS/cm Conductivity Standard, 500ml Back Catalog number: 6210129 Availability: In the manufacturer's stock Price on request - + Recommended 18901157 D201G Refillable combination pH probe 24,38 € 18901165 pH buffer solution 13,81 € 18901183 DREF02 Reference electrode 41,44 €