I've used this device for only a week, but so far I'm pleased. It easily fits in a pocket and works reliably. It uses a single AAA battery, so replacement batteries will not break the bank.
I bought one to get an idea of how alcohol affects me and about how much I can consume before I hit the legal limit. Last week, I tested myself after a mixed drink and was surprised to see how high my BAC was. I took a walk with friends and got a snack before even considering getting in my car. I'm sure the device isn't perfect, but it helps me get an idea of how much alcohol has affected me. Knowledge is power!
I bought this a couple months ago and have gotten much use out of it. It seems like the accuracy is very close if not dead on. The only problem that I have noticed is if you try to do too many back to tests it starts reading really low if not 0.0
I've had this for about a month and have loved having it. I've manually added up my BAC according to my weight and the number of drinks consumed and BACtrack is always spot on. It is great to spread awareness and show how easy it is to be safe.
After my first DUI offense, in CA law, 5 mos of the lifesafer breathalyzer in my vehicle, Calibrated once a month, I bought this device & brang it to one of my vehicle devices check up & he said it was accurate. Highly recommend this!