Milwaukee MA9015 (KCl solution for storage of pH electrodes) must be purchased for post-measurement storage, otherwise the instrument will not work properly. The instructions also recommend purchasing Milwaukee M10007B (pH 7.01 calibration solution). An interesting device - the development of the United States, the assembly of Romania, no China. A calibration screwdriver is included, as are batteries. They forgot to put a pipette for applying a solution for storing electrodes MA9015, but it is not provided for in the instructions. The whole part of PH for water shows quite accurately. Until calibrated, it may show the fractional part correctly, as long as the difference with water with a known PH shows 7.3 instead of 7.8.
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