Important DO's and DONT's

  • DO take a DEEP lung breath before you blow into the mouthpiece.
  • DO be sure to form a good seal with your lips around the mouthpiece as you exhale.
  • DO blow with a firm even pressure until the tone stops.
  • DO make sure you always respond to the rolling retest.
  • DO focus. Do remember you will be asked to do a rolling retest. Don't be distracted by the request for a breath sample while driving … you have up to 30 seconds.
  • DO practice the rolling retest in a safe area, i.e., a parking lot, to get used to focusing on driving while providing a breath sample.
  • DO think ahead. Don't use mouthwash or cough medicine immediately before using the device.
  • DO think ahead. Don't smoke tobacco products immediately before using the device or blow smoke directly into the sensor head.
  • DO view our instructional video that shows you how to operate The Determinator® ignition interlock system.

And, very importantly

  • DON'T attempt to circumvent or tamper with unit or lockout will occur.
  • DON'T try having someone else provide the breath sample or drive someone else's car. You will be subject to strict penalties.
Alcohol Detection Systems, Inc. logo and an image of a hand holding The Determinator® ignition interlock system.