CSKC50M Reagecon 50,000 µS/cm Conductivity Standard, 500ml Back Catalog number: 6210129 Availability: In the manufacturer's stock Price on request - + Recommended 18901207 1408μS/cm 250mL Conductivity Solution, one bottle 19,90 € 18901209 84μS/cm 250mL Conductivity Solution, one bottle 19,90 € SE220 Double junction pH electrode SE220 Price on request