Kestrel Replacement NaCl & MgCl Salt KitReplacement salt for Kestrel RH Field Calibration Kit. The Kestrel replacement salt kit comes with one container of NaCl (Sodium Chloride 75.3%) and one container of MgCl (Magnesium Chloride 32.8%). Replacement salt kits should only be used if you have the Kestrel Meter Calibration Kit
We recommend using distilled water when recalibrating. When using distilled water to recalibrate, the number of times for usage is indefinite.