We Will Beat Any Price, Guaranteed! Discreet, Easy To Use Interlock Device. No Humming. 24/7 Support.
Request A Quote
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! We Are The Only Interlock Provider With Motorcycle & Boat Friendly Devices. 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 has more five-star Google reviews than any other ignition interlock provider!

Our Devices
Most reliable devices on the market. Plus, NO HUMMING!
Read About Our Devices
Nationwide Interlock
A Roadguard Ignition Interlock Device Service Provider
Get started today by filling out our short installation and quote request form or simply give us a call.
Call Now: (866) 694-6099
New Installations & Questions
Find an Ignition Interlock Device Installation Facility
A Roadguard Interlock Device Service Provider
SEARCH FOR INSTALLATION LOCATIONS:
Enter your city and state, or your zip code for the closest facility.
Your Road to a Safer Tomorrow Begins Here!
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.
Call Now: (866) 694-6099
Get Started Today!
Real Reviews Written By Real Customers
We set ourselves apart by providing excellent service with a commitment to customer satisfaction.


Nationwide Interlock is a Roadguard Interlock Device Service Provider.
Call Now: (866) 694-6099
New Installations & Questions