DREF02 Reference electrode Back Catalog number: 18901183 Manufacturer: DLAB Availability: In the manufacturer's stock Price (VAT incl.) 50,14 € 41,44 € - + Recommended 18901195 PH7.00 250mL 7.00pH, one bottle 13,00 € 18901170 D201-C Combination pH probe 15,84 € 18901205 PH12.46 500mL 12.46pH, one bottle 34,94 €