Negative Positive
Title: Does not work
Review: I've bought many of these over the years, and they usually gave results much lower than the lab work from 3 different labs. I filled out the forms for the FDA to report this kind of bad product, but they only responded by giving me contact information for the manufacturer. The manufacturer declared the kits were properly tested and calibrated. I asked for the documentation from the labs to prove it and they refused to release the information. No refund was offered. FDA did not follow through with any action.
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