pH elektroda HI73127 pro pHep testery Back Catalog number: HI73127 Manufacturer: Hanna Instruments Czech Availability: Currently unavailable Price on request - + Recommended 18901204 PH1.68 500mL 1.68pH, one bottle 34,23 € MA918B/1 Comb glass pH electrode 3 dia, DJ,refill, BNC, 1m Price on request 18901193 PH6.86 250mL 6.86pH, one bottle 12,74 €