pH Sensor InPro4260i/SG/225 Back Catalog number: 52005382 Availability: In the manufacturer's stock Price on request - + Recommended 18901197 PH1.68 250mL 1.68pH, one bottle 18,71 € 18901199 PH4.00 500mL 4.00pH, one bottle 19,90 € 18901155 D201T 3-in-1 Plastic pH probe 51,74 €