pH Sensor InPro4260/120/PT1000 Back Catalog number: 52002987 Availability: In the manufacturer's stock Price on request - + Recommended 18901183 DREF02 Reference electrode 40,60 € 18901195 PH7.00 250mL 7.00pH, one bottle 12,74 € 18901188 DDJS-0.01VK ultra-low conductivity probe kit 129,35 €