One sensor appeared to provide fairly accurate readings but didn't even last a week before detaching. The company did send a replacement. However, the next sensor gave wildly inconsistent readings, showing random spikes of 50 mg/dL or more when fasting. The readings didn't align with my known levels or the previous sensor. The first sensor was useful for observing trends, while the second was entirely unreliable. I still have one more left; we'll see. Overall, I wouldn't recommend purchasing this product.
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