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 2 990,00 Kč 18901152 DODO01-10M Optical DO probe 18 830,00 Kč SE300 Double junction orp platinum electrode SE300 Price on request