Packaging OK. Delivered in 12 days from order date. Content in good shape and tested working. This device is not very sensitive though. I started measuring the presence of ketones, quite long after I started to feel them, and the maximum I reached after a few days of fasting, was 3 on 20 points.
I'm leaving 4* to product description, because I'm still uncertain on how reliable the readings are. I do keto, but my wife does not. yet when we both blow into analyzer at reads 0.1 every time. I find it if it curious that we have the same reading . I'll try to improve the quality of my keto diet and give better feedback at a later stage. That aside, I think the product is well designed. it has a nice feel, and I love the fact that it uses commercial batteries that are easy to I think this is a good product, sorry do hope that the readings are reliable. thank you very much and God bless