Combined pH electrode MA920B/1 Back Catalog number: MA920B/1 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended MA905B/3 Combination pH electrode MA905B/3 Price on request 18901204 PH1.68 500mL 1.68pH, one bottle 34,23 € 18901194 PH9.18 250mL 9.18pH, one bottle 12,74 €