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The Draeger Interlock XT is the most reliable and affordable ignition interlock device (IID) in Illinois.

Certified Illinois Provider of Ignition Interlocks

In 1991, AlcoTest became a cerrified Illinois ignition interlocks provider. Our authorized service centers are located throughout Illinois for your convenience. We are focused on providing professional and affordable ignition interlock services to our clients… making life safer for everyone on the road.

What is an Ignition Interlock Device?

The Draeger Interlock XT is a device installed in automobiles to monitor a driver's breath alcohol content (BAC) before allowing the engine to start. The automobile cannot be started if driver's BAC is above preset limit defined by Illinois Secretary of State. While driving your automobile, the Draeger Interlock XT will prompt the driver to take random breath test (rolling test) that is recorded for later data retrieval at an Illinois authorized service center.

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Ignition Interlock Installation

Draeger XT installation takes about one hour at one of our Illinois service centers. At your appointment, you will be asked to complete some paperwork including a lease agreement. Our technician will provide training on Draeger Interlock XT and a certificate of installation required to obtain your Illinois restricted driving permit.

Routine Monitoring Checks

Per Illinois secretary of state, ignition interlocks must be calibrated every 30 or 60 days. Our authorized service centers can recalibrate the IID in about 5 minutes. During your appointment, data is download from the device for monitoring authorities and your next appointment is scheduled.

IID Removal

At completion of program, our technician will remove interlock device from your automobile. IID removal takes about 20 minutes. You will be provided with a certificate of completion required for your Illinois driver's license reinstatement.

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I really appreciate Lissa for her kindness, patience and willingness to walk me through the process from start to finish. She answered all of my questions and went above and beyond to make me feel at ease. Thank you Lissa and please continue to keep up the great customer service. -- Tamecca

This is not an easy thing to go through, and it can be scary. I called several places before Alcotest and nobody could answer my questions the way Lissa did. She made me feel like a real person and genuinely felt like she cared. You can tell she puts herself into her work 100%! She was patient and honest and even told me about a discount I could apply. Very thorough and helpful through every step of the process. Highly recommend! -- Kassi

Called Alco and spoke with Lissa. My mechanic recommended this company and Lissa. She was great. She made the process easy, and answered all of my questions in detail. She was professional and friendly. What more could you ask? -- John

Hi Lissa, thank you again for your help with getting my BAIID installed. They did a great job and were quick! Drove for 35 minutes and had to blow once and passed the first time on the highway. I feel more relaxed and comfortable knowing it was installed properly and you're on my side with any help in the future. I look forward to our "partnership" through this experience and I'm deeply grateful and appreciative of your help. -- Nicole

I had called other companies before i got my RDP to get pricing and advice and all they wanted was my credit card and send me a machine that would have messed everything up by having it to early it was a awful experience until I called AlcoTest Inc and the very nice lady Lissa was very great in informing me from start to finish and didn't want my card or blow off my questions she went above and beyond want customer service should be. I recommend this company over all the rest and they have the best pricing with the best customer service that actually listened to my concerns because you want to get this right the first time and I talked to 4 different ones and the first one just wanted to send the machine and I didn't even have my permit yet so I'm sure there's people out there driving do to that company doing the fastest way ...not listen at all just want the money. So, if you need a BAIID system installed to get a permit I highly recommend AlcoTest Inc. -- Done Rite Done Rite

Helpful. Lissa is the coolest person in the world. She will answer all your questions and she takes her work personally. Even offered to give me coupons via email, and talked to me personally about my device. Even told me what I should do in case things happen. Couldn't be happier with her help. called me after hours and I need that. -- Rick

Carlos, Even the license reinstatement lawyers on Avow had no idea how to address this issue. I was in full panic mode due to the lack of information, and just one call to you settled the concern. Thank you for being patient and helpful. It is so appreciated that you take the time to be helpful to your customers. I will never forget the kindness you have shown to me. -- Linda E