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Frequently asked questions

FAQ: Frequently asked questions about breathalyzers & IIDs

Article | FAQs  

Find out answers to your most frequently asked questions around ignition interlock devices and breathalyzers. What is an ignition interlock device? How to use the device, how they work, pricing and costs, choosing the best provider and device for you and more.  An ignition interlock device, or IID, is a small device that connects into the ignition of a DUI offender’s vehicle that measures a user’s breath alcohol concentration (BrAC). An IID prevents a vehicle’s engine from starting until the user has provided a breath sample that is below the legal limit set by your state. If the driver’s breath sample is above the state limit, the vehicle will not start. Drivers with an IID must periodically provide breath samples throughout each trip to verify the absence of alcohol. Additionally, ignition interlock devices track the user’s activity and provides a record of any violations to your state’s monitoring department.

What to avoid when using your ignition interlock device

Article | Things to avoid  

If an ignition interlock device or breathalyzer is installed in your vehicle, there is a list of products that should be avoided to prevent any problematic situations. Read our list of some of those products, as well as why they could cause problems.

DUI laws and legislations

Ignition interlock & DUI laws and legislation per state

Article | DUI state laws  

All states define the legal breath alcohol concentration (BrAC) limit for driving as .08 percent but specific laws and penalties vary greatly from state to state. Most states will limit driving with a restricted license after the first DUI or OWI offense. All 50 states have laws that allow for ignition interlock devices to be installed depending on the circumstances. Half of the states require interlocks for all convicted drunk driving offenses. All states share the same legal limit for driving at .08 percent but each state can decide its own laws which means they can differ substantially. All states have laws that allow ignition interlocks to be installed as an alternative or in addition to sentencing but the circumstances are different and not always mandatory. 


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How to buy the best affordable ignition interlock device

Article | IID costs  

Learn how to lease an ignition interlock device. Choosing a highly rated interlock provider can be an important decision and many factors should be considered including pricing, quality and reputation. If you are looking to install an ignition interlock device in your vehicle, there are many things to consider. It is important to think through all of your options when choosing your device and provider.

Frequently asked questions

Fact vs. myth: Common breathalyzer myths busted

Article | Ignition interlock facts vs. myths  

Find answers to the common questions about ignition interlock and breathalyzer devices. Let us decipher the facts vs. the myths around topics like: some foods and drinks cause false positive readings in your BrAC breath test, it is possible to bypass, trick or cheat an ignition interlock or breathalyzer device, someone else can perform your blow test for you in order to start your car, etc. Find out the real story behind some of these common facts and myths. You might be surprised with some of the answers you find! 

SR-22 Car insurance

SR-22 Car insurance: Why you need it

Article | DUI insurance costs  

Find out what kind of insurance is required when you get an ignition interlock device. Some state laws require those convicted of drunk driving offenses to obtain SR-22 vehicle (high risk) insurance for a set period of time following your offense. It is important to pay attention to the terms of your auto insurance. Some insurance companies will terminate your policy upon receiving a DUI. Read everything you need to know about SR-22 insurance and where to get it!