Summing up, I want to say: - I recommend buying this miracle of nature ! But you need to check in different ways (available on the Internet) . After all, it's never too late to return! Sobriety everyoneπ Pros below: Shows very accurately! Why did I decide so? I just know how it works . . and, judging by the reviews, I was probably lucky with the device . Because I read that there are a lot of erroneous measurements or simply does not work. Different cons: Collected tyap-blunder))))) well, what do you want . - Chinese. Hence the reviews: sometimes it works, sometimes it doesn't work.