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 18901194 PH9.18 250mL 9.18pH, one bottle 320,00 Kč MA811/2 Conductivity/TDS probe with 2meter cable (MC410). Price on request 18901198 PH12.46 250mL 12.46pH, one bottle 470,00 Kč