pH tester pHep® 4 Back Catalog number: HI98127 Manufacturer: Hanna Instruments Czech Availability: Currently unavailable Price on request - + Recommended MI150 pH/Temp combined bench meter Mi150 Price on request MW102 µp-based ATC pH/Temp meter MW102 Price on request MI806 Portable meter pH/EC/TDS/Temp Mi806 Price on request