DREF03 Reference electrode Back Catalog number: 18901184 Manufacturer: DLAB Availability: In the manufacturer's stock Price (VAT incl.) 49,35 € 40,78 € - + Recommended 18901197 PH1.68 250mL 1.68pH, one bottle 18,79 € MA921B/2 Double junction ORP platinum electrode MA921B/2 Price on request 18901195 PH7.00 250mL 7.00pH, one bottle 12,79 €