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 1575-500ML CHEMSOLUTE ready-to-use conductivity sol. 1413 µS/cm, 500ml (THG) Price on request 52002987 pH Sensor InPro4260/120/PT1000 Price on request