Screw this company. I helped a cousin who had to install this company’s device in her car. Such garbage. 80s technology that barely functions, has a rigid maddening procedure and demands retesting while driving. I used it when I borrowed her truck and you learn to hate it in seconds. Auto shops charge hundreds to install this thing and hundreds more to remove it later. All along you pay the company approximately $100/month to use it. There are heavy fines for any mistakes and high charges for “calibration”. I hope this somehow impacts intoxalock negatively.