We Will Beat Any Price, Guaranteed! Discreet, Easy To Use Interlock Device. No Humming. 24/7 Support.

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We Are Currently Offering Free Ignition Interlock Installation & Set-Up. We Will Beat Any Price, Guaranteed.

Same Day Installation As Well As Evening & Weekend Appointments Available! Fill Out The Form & We Will Get Back To You Promptly!

By clicking the “Send Request” button above, you consent to Nationwide Interlock LLC and its affiliates calling and/or texting you at the telephone number provided to encourage the purchase or lease of DUI-related products and services, including by use of automated technology, artificial voice and/or pre-recorded means. Consent is not a condition of purchase.

Why do people choose Nationwide Interlock over other ignition interlock providers?

Nationwide Interlock

A Roadguard Ignition Interlock Device Service Provider

Nationwide Interlock – Your Trusted Roadguard Ignition Interlock Provider

If you’ve been ordered to install an ignition interlock device (IID) after a DUI or drunk driving arrest, Nationwide Interlock is here to make the process fast, simple, and stress-free. As an official Roadguard Ignition Interlock Device Service Provider, we deliver state-certified, court-approved car breathalyzers that meet all compliance requirements—so you can get back on the road with confidence.

An ignition interlock device is the most widely used technology to prevent drunk driving. While many people aren’t familiar with how these devices work, they’re more common than you might realize. That’s why our experienced customer service representatives are ready to answer your questions and guide you step-by-step through the entire process, from scheduling your installation to staying compliant with monthly service.

With same-day, evening, and weekend appointments, plus a best price guarantee and free installation promotions, Nationwide Interlock makes compliance affordable and convenient. We have certified service locations across Michigan, Florida, Ohio, Minnesota, Tennessee, Wisconsin, and Indiana, so help is always nearby.

Get started today. Fill out our quick installation & quote request form—or call now and speak directly with a representative who understands your state’s requirements.

Call Now: (866) 694-6099

New Installations & Questions

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A Roadguard Interlock Device Service Provider

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Superior Ignition Interlock Devices

Nationwide offers the Roadguard ignition interlock device. An easy breath pattern and one of the most reliable devices on the market.

Meets All State Requirements

Nationwide Interlock devices meet all state requirements. Our state representative will assist you in finding the correct IID/car breathalyzer that is required by your state.

Best Priced Ignition Interlock

Nationwide Interlock offers a best price guarantee.

Most Convenient Locations

A large network of state certified BAIID service centers and referral partners within a few miles of your location.

Call Now! (866) 694-6099

New Installations & Questions

Why People Choose Nationwide Interlock

When you contact Nationwide Interlock for a car breathalyzer you will get a knowledgeable state representative who is there to assist you. You will speak to a live representative who understands the requirements needed for your IID/car breathalyzer. You can expect a judgment-free experience. Nationwide interlock understands the importance of treating all customers with the utmost respect.