pH tester pHep® 4 Back Catalog number: HI98127 Manufacturer: Hanna Instruments Czech Availability: Currently unavailable Price on request - + Recommended CD601 Conductivity tester with atc, 0 - 1990 µs/cm Price on request HI991001 Přenosný přístroj na měření pH/°C Price on request MW302 Conductivity meter MW302 Price on request