CSKC50M Reagecon 50,000 µS/cm Conductivity Standard, 500ml Back Catalog number: 6210129 Availability: In the manufacturer's stock Price on request - + Recommended 18901160 DDO01-2M Polarographic type DO probe 119,00 € 18901173 D201FLAT Combination pH probe-flat sensor 32,24 € MA911B/2 Double junction pH electrode MA911B/2 Price on request