Digital Alcohol Tester Analyzer Detector LCD Breath Alcohol Analyser Tester Breathalyser For iPad 2 3 iPod iPhone 4 4S/5

Well It is made cheap and it worked for about two seconds then shut off. It is made so cheap that the connector was lose causing it not to work. I put in in the trash can less then a minute after opening the package.

Digital screen fogged up on first use. Eventually stopped working altogether. Wasn't worth the time or money to send it back.

Do you know if this product has a calibration certificated? An who give it?It one must to be calibrated before it used? There is some software can be used to do it?