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How Interlock Works

Helping You Stay Informed

If this is your first time with an ignition interlock system, you probably have a lot of questions. Below, you’ll find some commonly asked questions and the answers to them.
What Is Interlock?
An ignition interlock device or breath alcohol ignition interlock device is a breathalyzer for an individual’s vehicle. It requires the driver to blow into a mouthpiece on the device before starting the vehicle. If the resultant breath-alcohol concentration analyzed result is greater than the programmed blood alcohol concentration, the device prevents the engine from being started. The interlock device is located inside the vehicle, near the driver’s seat, and is directly connected to the engine’s ignition system.

On average in the USA, Interlock Ignition Devices costs about $70 to $150 per month as a service fee and about $70 to $150 for an installation fee.

 

Most companies have to charge in petty little stuff like missed appointments, violation fees or administrative fees… we are one flat fee with none of the Back Door Charges. Call for pricing.

No, interlock cannot detect drugs. It can only detect the presence of alcohol, and the presence of alcohol can be in mouthwash, energy drinks, food and other substances, so be careful.
No, interlock can only detect alcohol. Some roadside police traffic stops do use a saliva test to test for Marijuana though.
Yes, ignition interlock can be installed on a motorcycle but it is meant for a car, so it may be a little awkward installing it and it may look unprofessional on your bike.
The ignition interlock device uses very little battery power. If you are driving an older car or on an old battery, it might be a good idea to start your car at least once every 4 days just to make sure the car isn’t dead.

In Kansas, your BAC level must be below .04 to pass the breathalyzer for interlock. One drink is about .05 BAC, and it takes about 1 hour for that to clear your system.

 

Our best advice is don’t try cutting it close. You risk going back to court, jail or an extended suspension with the device.

 

“A 100-pound woman could not have even one drink in an hour without being legally intoxicated.”