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Ignition Interlock That Fits Your Life

Your Ignition Interlock Device (IID) requirement doesn’t have to be a nightmare. That’s why our car breathalyzers are designed to be frustration-free. You’ll get an Ignition Interlock that’s easy, dependable, and affordable.

Get a quick and easy IID installation with Smart Start! Get started today!

¡Obtenga una instalación rápida y fácil de IID con Smart Start! ¡Empieza hoy mismo!

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Photo of the SSI 20/35™ Ignition Interlock Device

SSI 20/35™ Ignition Interlock

Photo of the SSI 20/30™ Ignition Interlock Device

SSI 20/30™ Ignition Interlock

Photo of the SSI 20/20™ Ignition Interlock Device

SSI 20/20™ Ignition Interlock

Photo of the SSI 30/30™ FLEX™ Ignition Interlock Device

SSI 30/30 FLEX™ Ignition Interlock

Smart design. Low pricing. Convenient IID installation.

Small & discreet

Our Interlock Ignition Device is no bigger than a smartphone, it fits comfortably in your hand.

Quick Ignition Interlock installation

Skilled technicians get you back on the road.

Transparent pricing

No hidden fees, and no locked-in contract.

Ignition Interlock installation locations near you

Thousands of conveniently located service centers.

Convenient payment options

Bi-weekly or monthly* – plus autopay.

Introducing FLEX™ Ignition Interlock

Not Available in All Areas

We’re committed to creating innovative car breathalyzer solutions to help you succeed in your Ignition Interlock program. Our latest breakthrough is the FLEX, a forward-thinking Ignition Interlock Device.

With a sleek, modern design and an intuitive, three-button interface, the FLEX Interlock system is yet another example of an Ignition Interlock Device designed with you in mind.

Excellent TrustScore of 4.7 out of 5

What is an Ignition Interlock Device?

An Ignition Interlock Device (IID), also called a car breathalyzer, is typically installed in your vehicle as part of a legal requirement from law enforcement after drunk driving or other form of suspension. These Ignition Interlock Devices are small and discreet – about the size of a cell phone – and are located on the driver’s side of your vehicle.

Smart Start’s handheld car breathalyzer unit includes a cord that’s long enough to let you move the device freely. If it’s required by your state, you’ll also have a camera that verifies your identity during testing.

What’s the difference between a car breathalyzer, an Ignition Interlock Device or a BAIID?

A car breathalyzer is a name that’s commonly used for an Ignition Interlock Device (IID). If you’ve had a DUI, it’s typically part of a legal requirement to install a breathalyzer in your car.

Some states – like Illinois and Michigan – also use the term Breath Alcohol Ignition Interlock Device (BAIID). Whether you call it an IID, BAIID or just a breathalyzer for your car, it’s a proven way to prevent drinking and driving.

How do Ignition Interlock Devices work?

Just blow into your Ignition Interlock Device to provide a breath test sample in order to start the vehicle. It measures your Breath Alcohol Concentration (BrAC).

The car breathalyzer tracks your vehicle activity anytime someone attempts to start the vehicle and while anyone is driving. The data provides a record of violations to your state/State Authority.

Each state has its own rules, but generally:

  • If you’re sober, you’re ready to go.
  • If you have alcohol in your system (the amount depends on your state or local laws), the vehicle won’t start.
  • The IID requires random retests after you have started your vehicle. For your safety, we strongly recommend that you pull over to take these tests when your device alerts you.

Is an Ignition Interlock Device easy to use?

Using an Ignition Interlock is easy. Blow into the device for three or four seconds while humming at the same time, and you’ll hear a click that signals the test is complete.

Depending on state laws, our car breathalyzers support a “blow-and-hum” technique to confirm that it’s a real person taking the test. Blow-and-hum is more sanitary and less complicated than a blow-inhale-blow pattern used by car Interlock Devices from other companies. You can also help keep your device sanitary by cleaning or changing out the mouthpiece regularly.

How do I get an Ignition Interlock Device installed?

Ignition interlock installation is our specialty. Contact Smart Start at (800) 831-3299 to set up an Ignition Interlock system appointment, or schedule an appointment online. We’ve got thousands of service centers, so we’ll find a location that’s convenient for you.

Ignition Interlock installation typically takes a couple of hours, and it’s easy to set a same-day appointment. Our skilled Smart Start technicians will:

  • Install your Ignition Interlock Device in your motor vehicle.
  • Demonstrate the proper way to use it.
  • Give you hands-on training so you’re comfortable using your Ignition Interlock system.