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 18901200 PH6.86 500mL 6.86pH, one bottle 500,00 Kč 18901188 DDJS-0.01VK ultra-low conductivity probe kit 3 250,00 Kč 18901183 DREF02 Reference electrode 1 020,00 Kč