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 MI150-E pH/Temp combined bench meter Mi150-E Price on request HI 98309 Konduktometr UPW, 0,000...1,999µS Price on request