pH Sensor InPro4800i/SG/225 Back Catalog number: 52005384 Availability: In the manufacturer's stock Price on request - + Recommended 18901205 PH12.46 500mL 12.46pH, one bottle 34,23 € 18901199 PH4.00 500mL 4.00pH, one bottle 19,90 € 18901182 DREF01 Reference electrode 19,90 €