We use a lot of them breathalize 2 times aday for around 20 people Thing were good except shipping I put the PO Box and the street address on the ship to They left out the street address and shipped by UPS it delayed things 3 days
This is my second purchase of this brand Breathalyzer. The first was 8 yrs ago and remained reliable until 2 months ago when it pooped out. This is the only brand I'll ever buy.
Not really much to review here. They are just like the ones that came with my BACtrack. Currently I am the only one using it, so haven't had the need to use them yet, but they are there when the need arrives. Love my BACtrack, it is helping me to be more responsible.