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      The #1 Ignition Interlock Brand in the U.S.

      About Intoxalock

      Intoxalock, also known as Consumer Safety Technology or CST LLC., has been manufacturing ignition interlock devices (car breathalyzers) for over 30 years and today is an industry leader in reliability, customer service and technology.

      Intoxalock is a Des Moines, Iowa based company that prides itself on a strong Iowa work ethic to provide our customers with professional service and reliable alcohol monitoring devices. Our ignition interlock devices meet state requirements in 46 states across the nation, and our alcohol monitoring products are used in all 50 states.

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      A person holding an Intoxalock ignition interlock device, which is installed in their vehicle to measure breath alcohol concentration before the vehicle can start.

      Our Core Values

      Deliver Amazing Service

      We will differentiate ourselves through excellent customer service and high levels of customer satisfaction.

      We value people who are hard working, efficient and consistently willing to do what it takes to achieve our mission.

      Produce Exceptional Results

      We will adhere to all rules and regulations and be the most compliant interlock company in the industry.

      We hold ourselves responsible for our actions and results. We are committed to performance, and we set, monitor and achieve clear and measurable goals.

      Inspire Positive Change

      We will identify root cause issues and work to resolve these issues to ensure a positive customer and regulatory experience as well as a low cost/high quality system. 

      We strive to maintain the highest moral and professional standards and honor our word in all our relationships; and if there are any conflicts, we are committed to seek fair and reasonable solutions.

      Get a Free Quote! Call 888-283-5899

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      Solicitud de contacto en Espanol

      By clicking the button, you consent to Consumer Safety Technology, LLCConsumer Safety Technology, LLC companies include Intoxalock,, DUICare and its affiliate Breathe Easy Insurance Solutions, LLC calling and texting at the telephone number provided, without regard to the time of day, to encourage the purchase or lease of DUI-related products and services, including through the use of automated technology, artificial voice and/or pre-recorded means. Consent is not a condition of purchase. For California residents, click here.

      Our Mission

      Helping people to live and drive responsibly.

      Our Customer Commitment

      Intoxalock will be the company that people want to call and to recommend to others when they are faced with a DUI. We will treat every customer with respect, and we will patiently assist them in their quest to get back on the road legally with minimal disruption. We will be the easiest company to do business with in the interlock industry and strive to be where our customer is, when they need us, with the products and services that make the process simplest for them.


      • Winner of SEMA Award 2013
      • A+ rating with Better Business Bureau
      • National Highway Traffic Safety Administration (NHTSA 2013) compliant

      Highest Standards

      Intoxalock’s ignition interlock devices are manufactured to the highest reliability and industry standards. We go beyond others in the industry by meeting both automotive and medical ISO standards.

      • ISO 9001: 2015 certified