The longer I wear this sensor (and more I calibrate), the more accurate it gets. The trend is still correct, but the numbers were either 10% high or 10% low. I can’t help to wonder if it is a function of the meter — and sure wish they would upgrade the meter to the Ultra II.
No problem with using either the hot tub or shower, but I also saw that with the STS-3.
Still very happy.
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