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 HI1043B Refillable Double Junction pH Electrode Price on request MA911B/2 Double junction pH electrode MA911B/2 Price on request MA918B/1 Comb glass pH electrode 3 dia, DJ,refill, BNC, 1m Price on request