Title: defective device & awful customer service
Product review: CardioCheck device arrived in time. Tested it on the same day within half hour from identical test at a clinic 10 minutes from my home. Clinic test result was Chol = 144, CardioCheck was 100. Similar gaps for HDL and Trig. Complained by email to seller who replied that their device has a margin of error up to 12%. When I replied that the margin of error in my case was more like 30%, he started listing things that I might have done wrongly when preparing or performing the test. I requested that they ship a replacement unit giving them the benefit of doubt. They declined the request and maintained that their device is very accurate. I wasted $138 for nothing and will never buy again from the company making the CardioCheck tester. DO NOT BUY IT!
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