pH Sensor InPro4260/120/PT1000 Back Catalog number: 52002987 Availability: In the manufacturer's stock Price on request - + Recommended MI59P EC/TDS/Temp probe for EC59 and EC60 Price on request 6210129 CSKC50M Reagecon 50,000 µS/cm Conductivity Standard, 500ml Price on request MI57P ORP/Temp probe for ORP57 Price on request