CSKC50M Reagecon 50,000 µS/cm Conductivity Standard, 500ml Back Catalog number: 6210129 Availability: In the manufacturer's stock Price on request - + Recommended MA811/2 Conductivity/TDS probe with 2meter cable (MC410). Price on request MC720 MC720 Controller kit Price on request MA831R Stainless steel temperature probe Price on request