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.
HI96821 Sodium Chloride - Digital Refractometer Portable
BL983321-1 TDS Mini Controller 0.00 to 19.99 mg/L (ppm) - 230V
HI3822 CTK Sulfite
HI7071 Electrolyte Solution 3.5 M KCl + AgCl, 4 x 30 ml
เครื่องวัดปริมาณคลอรีนรวม รุ่น HI711 

