Nakagawa Xinmai non-invasive blood glucose analyzer is a little expensive, is it worth buying?

The price of Zhongchuan Xinmai non-invasive blood glucose analyzer is a little expensive, but it is still worth buying. First of all, because it uses sound and light technology, detection is accurate and reliable, no need to prick the finger, reduce the risk of infection; secondly, because it does not need test strips, no consumables, do not have to spend a second time; thirdly, buy it a can be used by the whole family, a product can be used for at least 5 years, in the middle of the new products, you can also trade in the old for a new one, but also save a lot of expenditure. Therefore, the synthesis of these factors, the cost-effective or can be ∞