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 18901216 1413μS/cm 500mL Conductivity Solution, one bottle 940,00 Kč MA916B/1 Combined glass pH electrode, refill, BNC, 1m Price on request MA840 Polarographic DO probe with 3m cable Price on request