Dear Team, No problems for what concerns the 10 pack accessories for breathalyzer, it takes easily the 5 stars. It is the "S80" model that is not working properly in mg/l mode, the device indicate more or less half of the real level of alcohol in my breath if compared to the devices used by the Police in Italy.
Has already saved me from Buzz Driving!! I was out drinking.. Tried it was .09! Thought I could drive.. But I stayed an extra hour, ate somethings, and dranked plenty of water. Tested .03 and went home safe and sound!! I will never doubt myself again!!