CSKC50M Reagecon 50,000 µS/cm Conductivity Standard, 500ml Back Catalog number: 6210129 Availability: In the manufacturer's stock Price on request - + Recommended SN-01R Ampoule opener 55,03 € 18901201 PH9.18 500mL 9.18pH, one bottle 20,31 € MA905B/3 Combination pH electrode MA905B/3 Price on request