“I work at a local PD and tested the PBT (Backtrack) on the same machine (Datamaster) we test individuals on for OVI's that is court approved. It was a little low but not by much. The reading should have been .100 but the PBT read a .098. That is actually better than the PBT's we use in the field. For $85 and a 1 year warranty, you can't beat this product. Plus my friends and I have fun with it when I'm not at work. I wish the case held more mouth pieces but that is the only down fall.”
“I bought a new S80 that seemed good. My very old S70 was recalibrated, but gave bad results. You gave me a good deal on trading in my S70 for an Element; now I have complete faith in both the S80 and the Element.”
“I bought this product a few month ago and have been happy with it. I don't have any real ways to measure how accurate it is scientifically but when I've been drinking and use it, it seems to be accurate with how I feel.”
“I'm doing this review after my first use. It works fine, great precision. The hand strap is hard to fit in place, and the manual has no information about the hand strap.”
