“It seems to work well and be accurate. However, I don't have a small lung capacity, and I run marathons, but I'm about ready to pass out by the time it beeps to say stop blowing.”
“What I like most about this product is how easy it is to use. I can now go out and drink and know exactly when the alcohol is out of my system and safe to drive”
“We have 10 of these devices which we use for our company, and while the products are generally good, the S80 gives constant issues. Sadly the customer service is really bad. They are reluctant to refund or exchange faulty devices, and want you to send it in each time for a calibration which takes a month. We had one device that was sent back for repair and was returned still faulty, and we were told they wont exchange it, only calibrate it again despite not doing it properly the first time. Seems they only have one person doing customer service, and when he is on vacation you wont get a response for weeks at a time.”
