Fill HI702 Checker cuvette with 10 mL water sample to line

5V AA alkaline (included)

5 Micron Filtration

Reverse osmosis (RO) drinking water systems

Immerse pH or ORP electrode in cleaning solution

Hanna HI7061M General Purpose Electrode Cleaning Solution 230mL replacement probe Fill HI702 Checker cuvette withHI7061M is a general purpose cleaning solution that can be used for a variety of applications. Electrodes can become dirty from use and will produce inaccurate results even as they read correctly in a pH buffer. Hanna's cleaning solutions eliminate impurities and residues that are left on electrode surfaces when immersed in samples during measurement or when stored incorrectly. Hanna suggests cleaning the bulb and junction of your electrode on a