HI 98184  meter Portable pH / ORP / ISE Graphic Display Calibration Check ™ and USB, IP67 Waterproof casing HI 98184 is the new portable meter for pH, ORP and Ion Selective HANNA. Thanks to the exclusive Calibration Check ™, the status of the pH electrode is kept under control and the user is alerted in case of significant changes, to avoid calibration ... Read More »

HI 98183  meter Portable pH / ORP, graphic display, Calibration Check ™, USB interface and rechargeable induction; IP67 Waterproof casing HI 98183 is the next generation of measuring pH and ORP HANNA. With the exclusive Calibration Check ™, the status of the pH electrode is compared with the previous calibration and the user is alerted in case of significant changes to avoid calibration ... Read More »