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 18901193 PH6.86 250mL 6.86pH, one bottle 320,00 Kč HI1043B Refillable Double Junction pH Electrode Price on request MA840 Polarographic DO probe with 3m cable Price on request