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How Do Ignition Interlock Devices Work? What Is an Interlock?
When you start the vehicle, you will have to blow into the mouthpiece connected to the car breathalyzer. It will then measure your breath alcohol concentration (BrAC) and automatically determine whether to allow the car to start. To ensure a sober driver is behind the wheel, the device also requires rolling retests at intervals while you are driving. Any retest you take, whether pass or fail, will be reported to your monitoring authority.
The device requires anyone who drives the vehicle to provide a breath test, even if they are not the owner. Depending on where you reside, a camera may be required along with your ignition interlock device. This helps protect you from an alleged violation if someone other than you attempts to drive the vehicle after consuming alcohol. Some states will extend your restricted driving period with every attempt to start the car with a BrAC over the threshold. Follow these steps to start your vehicle with a Draeger interlock device.
Turn your key, or press start, and the device will power up.
Take a deep breath in, then blow.
When you hear a tone, take a deep breath in again.
When the display shows “Test Passed”
start your engine and go!
What is it Like to Live with an Ignition Interlock Device?
Having to use an ignition interlock device before you drive may be an extra step, but it does help you become a safer driver. In some cases, the interlock is visible from outside the vehicle. Draeger, as an interlock provider sells devices that are designed to be discrete. Living with an interlock ignition device can be difficult to accept to start with, but most people rapidly become accustomed to using the device. Generally, you should avoid alcohol-containing mouthwash and keep other products with alcohol away from the device. Avoid driving 15 minutes after eating, drinking anything other than water, or smoking.
Rolling retests will allow you a few minutes to pull over to provide a breath test safely, so plan your route accordingly.
We hope you now have a better understanding of what an ignition interlock device is. Getting one should not be viewed as a punishment, but rather as an alternative to allow you to maintain your driver’s license and an aid to help you get your life back together. If you are required to get an ignition interlock device, then you should contact Draeger today to work with professional ignition interlock installers. Our ignition interlock devices are discrete, well-designed, and will help you get back on the road.
*Links to any third-party websites herein are provided for your reference and convenience only. Dräger did not create nor develop, and does not own, any such third-party websites. Dräger does not endorse nor support the content of, nor any opinions stated in, any such third-party website links. Dräger is not responsible for the content of any third-party website or its accuracy or reliability. Nothing contained in this article or in any such third-party website shall be considered legal advice or be deemed to constitute legal advice. For any legal advice concerning a DUI arrest, charge, conviction or consequences thereof, you should contact an attorney of your choice.