Water Purity Tester, 0.0 to 99.9mS/cm Back Catalog number: HI 98308 Manufacturer: Hanna Instruments Czech Availability: Currently unavailable Price on request - + Recommended 4090010001 DORP1+ Pocket ORP Bluetooth Tester 1.DORP1+ Meter 162,79 € 4090010103 DDO10 Portable DO Meter (Polarographic Type/Color 670,65 € 4090010202 DDO100 Benchtop DO Meter (Polarographic Type) 1.DD 675,02 €