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 MA840 Polarographic DO probe with 3m cable Price on request 18901197 PH1.68 250mL 1.68pH, one bottle 18,71 € MA916B/3 Combined glass pH electrode, refill, BNC, 3m Price on request