Sada pufrů pH 4,01; pH 7,01; pH 10,01 Back Catalog number: HI54710 Manufacturer: Hanna Instruments Czech Availability: In the manufacturer's stock Price on request - + Recommended 18901205 PH12.46 500mL 12.46pH, one bottle 34,94 € 18901149 DDO01-2M-H Polarographic DO probe 121,47 € MA920B/1 Combined pH electrode MA920B/1 Price on request