Combined glass pH electrode MA991B/1 Back Catalog number: MA991B/1 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended 18901192 PH4.00 250mL 4.00pH, one bottle 320,00 Kč MA9305 Pack of 100 x 1.4V batteries. Price on request MA840 Polarographic DO probe with 3m cable Price on request