pH tester pHep® 4 Back Catalog number: HI98127 Manufacturer: Hanna Instruments Czech Availability: Currently unavailable Price on request - + Recommended MC122 pH controller MC122 Price on request MW101 Portable pH meter, 0.00 to 14.00pH, 2point cal. Price on request EC60 EC/TDS/Temp waterproof tester EC60 Price on request