Panasonic NN-ST681S - Microwave Recipes; Recipe Guide

7.4. At least once a year, have the
radiation monitor checked for
calibration by its
manufacturer.
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NN-SD691S / NN-ST681S / NN-SD671S / NN-ST671S / NN-ST661S / NN-ST661B / NN-ST661W / NN-ST651B / NN-ST651W