How Ignition Interlock Devices Work

What is an Ignition Interlock Device?

An ignition interlock device is a breath alcohol analyzer connected to the ignition of a car, also known as a handheld car breathalyzer. You may be required to install an ignition interlock device in your vehicle after receiving a DUI offense. A vehicle equipped with an ignition interlock device cannot be driven unless the driver passes the unit’s breath alcohol tests.

Ignition interlock devices significantly reduce the amount of drunk driving accidents and DUI penalties by preventing the car from starting if the driver is too intoxicated.

Our state of the art ignition interlock devices are easy to use.

Ignition Interlock Device Features

Easy-to-read digital displays and video sampling indicators
Detachable, lightweight handheld device to provide discreet mounting options
Quick and convenient calibrations with daily reminder of next calibration date
Simple, bilingual voice commands, and tone prompts

Ignition Interlock installation takes 1-3 hours, depending on your car make and model. Find an installer near you.

Simply blow into the ignition interlock device before starting your vehicle. If the sample meets the state requirement, it will start.

Your ignition interlock device will need to be serviced every 30, 60 or 90 days. Service dates will vary by state. Contact us for details.

Looking for Interlock Device Answers? Call 888-786-7384

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We're Here to Help You Through the DUI Process

We know the DUI process can be confusing. We have resources to help you through it.

Get a quote for ignition interlock device cost
Find an ignition interlock device installer near you
Guides for your state’s interlock device requirements
Which ignition interlock device is the best for you

ADS DUI Process Roadmap

We can help you through the DUI process.

We’ll guide you through all the things you need to know in your state quickly. Usually in less than five minutes.

Our state experts will help you with everything you need. Including the paperwork!

We know this is an unplanned expense and we will give you the best rate possible with NO HIDDEN FEES.

Our nationwide certified installation service centers will get you installed, calibrated and on the road quickly.

Once your program is complete, we will remove the equipment quickly and hassle free!

The Determinator® Interlock Device

Simple and safe to follow voice commands
User-friendly and discreet
Contact us to find out which model is appropriate for your state!

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Get back on the road with the highest-rated interlock device.

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