DREF02 Reference electrode Back Catalog number: 18901183 Manufacturer: DLAB Availability: In the manufacturer's stock Price (VAT incl.) 49,13 € 40,60 € - + Recommended 18901209 84μS/cm 250mL Conductivity Solution, one bottle 19,90 € 18901195 PH7.00 250mL 7.00pH, one bottle 12,74 € 18901153 DH10-LI01Lithium battery 23,08 €