pH elektroda HI73127 pro pHep testery Back Catalog number: HI73127 Manufacturer: Hanna Instruments Czech Availability: Currently unavailable Price on request - + Recommended MA911B/2 Double junction pH electrode MA911B/2 Price on request MA923B/3 Redox Epoxy electrode MA923B/3 Price on request MA905B/3 Combination pH electrode MA905B/3 Price on request