pH tester pHep® 4 Back Catalog number: HI98127 Manufacturer: Hanna Instruments Czech Availability: Currently unavailable Price on request - + Recommended HI2002-02 EDGE pH/ORP metr Price on request CD600 TDS tester with ATC, range: 0 - 1990 ppm Price on request MI180 Comb log GLP pH/mV/EC/TDS/NaCl/Temp Mi180 Price on request