Clean the liquid junction of your electrodes once a day or at least once a week to prevent clogging and to maintain accuracy. Immerse the electrode in the proper cleaning solution for about 5 minutes.
HANNA® offers a wide range of cleaning solutions, for general purpose and specific applications, to eliminate all kind of dirt or deposit from the electrode, and thus ensure correct measurements.
HI96701-11 CalCheck ™ Chlorine Free-Set
HI5068 - 6.86 pH@25°C - TQ - 500ml
HI5074 - 7.40 pH@25°C - TQ - 500ml
HI98128 pH/°C-Tester (0.01 pH resolution) - waterproof 


