What is an Ignition Interlock Device?

An ignition interlock device (or IID) is a breathalyzer installed in a vehicle that prevents driving under the influence of alcohol by disabling the vehicle if the driver’s blood alcohol content (BAC) is above the state mandated threshold. Get Started by visiting or by calling (833) 251-7634

Why Choose Intoxalock?

The Easiest Device.

  • One-button activation, easy-to-read LED display, fast warm-up time, ability to program in English or Spanish, and easy blow patterns with no humming required
  • Accurate and reliable technology

The Most Convenient Locations.

  • Get installed quickly: same and/or next-day installation available in most states
  • 3,500+ locations nationwide
  • 90% of customers live within 15 minutes of a service center
  • Service centers have state-certified technicians to ensure proper installations

24/7/365 Support.

  • 24/7/365 customer support by bi-lingual, state-specific experts
  • Free Intoxalock Mobile App to easily manage account, payments and calibrations

Affordable Pricing.

  • Flexible payment options and an easy to understand pricing model
  • On average, Intoxalock devices cost around $2.50 a day

An Industry Leader.

  • Intoxalock has been in business for over 30 years
  • Top-rated: more than 18,000 5-star ratings on Trust pilot

Special Offer for 1 Stop Motor Vehicle Services Referrals: FREE INSTALL!

The Free Install offer is a $100 rebate credit toward the cost of device installation (install cost is paid to the service center; we will reimburse the client via account credit up to $100).

The customer should ask for the Free Install rebate when they call Intoxalock.

Make Intoxalock your customers’ #1 choice for their ignition interlock device.