Combination pH electrode MA905B/3 Back Catalog number: MA905B/3 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended 18901183 DREF02 Reference electrode 40,60 € 18901216 1413μS/cm 500mL Conductivity Solution, one bottle 37,41 € 18901192 PH4.00 250mL 4.00pH, one bottle 12,74 €