Not accurate

This is the second one I purchased since the first one wasn't accurate. I used both within minutes of each other last night and seems they are showing a similar reading. I had the first one tested against the one in my PCP's office, so figure theirs was more accurate. Hence, leaving mine not so much. So when I tested both of mine together neither are accurate. So the word 'accurate' should probably be removed from your description of the monitor.

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