FYI: I recently bought a BAC tester at an auto parts store for $10. that works pretty well.
I've also previously been responsible to administer the test with standard law enforcement equipment. When the officer has you blow the second or third time, the results go up each time due to the temporary (moisture) contamination from your previous. Just in case you wondered.
Thanks. Apparently he was pushing the limits to get a notch on his belt, just as I suspected.
Another story. A friend of mine was stopped and arrested. Two HP cars on the scene. The female passenger in the car was told she couldn't drive the car home unless she submitted to a breathalizer test. She said ok, and as the patrolman went to get the unit, the other one said 'forget it, it isn't working'. This was the unit used to arrest the driver. He later blew at the station and was released without formal charges, other than improper equipment (tail light).
There is no moisture content problem if the mouth piece is changed after each sample as required. There is no moisture content problem with the BAC Verifier due to the mouth piece trap, heated breath tube, and purging system. What are you using? A chinese made piece of crap?