pH Sensor InPro4260/120/PT1000 Back Catalog number: 52002987 Availability: In the manufacturer's stock Price on request - + Recommended 6210129 CSKC50M Reagecon 50,000 µS/cm Conductivity Standard, 500ml Price on request MA811/2 Conductivity/TDS probe with 2meter cable (MC410). Price on request SE510 Conductivity/TDS probe with 1meter cable SE510 Price on request