pH Sensor InPro4260/120/PT1000 Back Catalog number: 52002987 Availability: In the manufacturer's stock Price on request - + Recommended 52005384 pH Sensor InPro4800i/SG/225 Price on request MA812/2 Conductivity/TDS probe with 2meter cable(MC 310). Price on request SE600 Combination probe SE600 Price on request