pH Sensor InPro3250/120/PT100 Back Catalog number: 52002547 Availability: In the manufacturer's stock Price on request - + Recommended 52005382 pH Sensor InPro4260i/SG/225 Price on request MA811/2 Conductivity/TDS probe with 2meter cable (MC410). Price on request MA814DB/1 EC/TDS/Temp probe for Mi170 Price on request