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 18901142 DORP1-S ORP sensor 1 330,00 Kč CD600 TDS tester with ATC, range: 0 - 1990 ppm Price on request HI9126 Přenosný pH/ORP metr Hanna Instruments Price on request