pH tester pHep® 4 Back Catalog number: HI98127 Manufacturer: Hanna Instruments Czech Availability: Currently unavailable Price on request - + Recommended MI170 Comb. Log. GLP EC/TDS/NaCl/Temp bench meter Mi170 Price on request MW101 Portable pH meter, 0.00 to 14.00pH, 2point cal. Price on request MC120 pH monitor MC120 Price on request