pH tester pHep® 4 Back Catalog number: HI98127 Manufacturer: Hanna Instruments Czech Availability: Currently unavailable Price on request - + Recommended MW801 Smart pH/EC/TDS combined meter MW801 Price on request PH58 pH/ORP/Temp waterproof tester, -2.00 to 16.00 pH Price on request MC125 pH/ORP controller MC125 Price on request