Combined glass pH electrode MA991B/1 Back Catalog number: MA991B/1 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended 18901155 D201T 3-in-1 Plastic pH probe 51,74 € 18901172 D201A-C Combination pH probe 17,91 € 18901149 DDO01-2M-H Polarographic DO probe 119,00 €