pH tester pHep® 4 Back Catalog number: HI98127 Manufacturer: Hanna Instruments Czech Availability: Currently unavailable Price on request - + Recommended HI 98308 Water Purity Tester, 0.0 to 99.9mS/cm Price on request MW801 Smart pH/EC/TDS combined meter MW801 Price on request MW102 µp-based ATC pH/Temp meter MW102 Price on request