I bought an alcohol one via a crowdnfunding campaign that plugged into your iPhone via this mythical ancient technology called 'an audio jack' years ago called

I bought an alcohol one via a crowdnfunding campaign that plugged into your iPhone via this mythical ancient technology called 'an audio jack' years ago called Breathometer. It was neat, it actually shipped and despite it chewing through batteries like crazy it was neat. I imagine these sorts of chips/sensors have coome leaps and bounds in the past 6ish years. I know that researchers at some point had developed one to monitor blood sugar level for diabetics, this is a neat application too and with more and more states decriminalizing marijuana I bet you guys will have a lot of customers!