pH tester pHep® 4 Back Catalog number: HI98127 Manufacturer: Hanna Instruments Czech Availability: Currently unavailable Price on request - + Recommended CD610 TDS tester with ATC, range: 0 - 10000 ppm Price on request HI9126 Přenosný pH/ORP metr Hanna Instruments Price on request MI151 pH/ORP/Temp combined bench meter Mi151 Price on request