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 MA955 Solenoid valve with 1.5meter cable incl. Fittings Price on request MI105 Portable meter Mi105 Price on request