LifeSafer Ignition interlock is the leading ignition interlock provider nationwide and home to “No-Call Install”, the first fully online installation booking tool. LifeSafer’s locations are MA certified and our expert technicians at 42 Locust Street can handle all your installation and calibration needs. LifeSafer has over 30 years of ignition interlock experience and has helped over 1.5 million people get... Read More about LifeSafer Ignition Interlock

Smart Start is the #1 Ignition Interlock Device provider in Haverhill with same-day installation available for your vehicle. We’re a convenient and affordable Massachusetts IID supplier located in Downtown Haverhill at 60 White St with mobile services and price matching available to give you the best value. Our reliable customer service experts and licensed technicians will make your IID device... Read More about Smart Start Ignition Interlock

Guardian Ignition Interlock is MA’s most affordable ignition interlock device. Guardian’s device is discreet and one of the easiest to use devices on the market. With over 30 years of experience, Guardian is one of the most trusted iid brands. Our location at 42 Locust Street is MA certified with expert technicians for all your interlock installation and calibration needs.