DREF02 Reference electrode Back Catalog number: 18901183 Manufacturer: DLAB Availability: In the manufacturer's stock Price (VAT incl.) 50,14 € 41,44 € - + Recommended 18901146 D201T-H Plastic pH probe 52,81 € 18901189 DDJS-0.01VT ultra-low conductivity probe 151,13 € 18901185 Cable Extension cable 4,47 €