CSKC50M Reagecon 50,000 µS/cm Conductivity Standard, 500ml Back Catalog number: 6210129 Availability: In the manufacturer's stock Price on request - + Recommended MI56P pH/Temp probe for pH55 and pH56 Price on request MA9305 Pack of 100 x 1.4V batteries. Price on request 18901166 Standard conductivity solution 19,89 €