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.
HI5016 - 1.68 pH@25°C - TQ - 500ml
BL983318-1 TDS Mini Controller 0.0 to 10.00 g/L (ppt) - 230V
HI763100 Digital conductivity electrode - 4 ring, platinum (edge)
Multiparameter Benchtop Photometer and pH meter
HI1143B - Electrode (Fluoride Application)
HI7061L - Electrode Cleaning Solution (General) - 500ml
HI2004 - edge® Dedicated Dissolved Oxygen Meter
เครื่องวัดสีในน้ำตัวอย่าง HI727 

