Ignition Interlock Devices (also known as IIDs)


An ignition interlock device (IID) is a small handheld breathalyzer gadget that analyzes the amount of alcohol in the user’s breath. It is used to prevent driving under the influence of alcohol. The installation of one is a regular necessity following an arrest for drunk driving (DUI, DWI, DUI, OWI, or OVI).


In its most basic form, an interlock device is a breathalyzer installed in a vehicle that stops a user from starting the vehicle until a breath alcohol test has been completed. Devices such as “in-vehicle breathalyzers,” “car interlocks,” and “blow and go” are all legitimate names for what are sometimes referred to as “ignition interlock devices.” Fortunately, LifeSafer is the leading provider of all of these systems at a cheap cost in nearly 2,000 handy locations, one of which is almost certainly close to you. Are you ready to begin installing? Fill out our enrollment form and we’ll get back to you as soon as possible.


How does an ignition interlock work?

It will not start if the IID detects a BAC (or Blood Alcohol Concentration) that is higher than the pre-set limit on the breath test results. The vehicle will start if the driver’s breath test results are less than the pre-set limit. The interlock device must be repaired and calibrated on a regular basis at a service location that has been authorized. Depending on the state, the length of time between these appointments varies, but they are commonly scheduled every 30, 60, or 90 days.


Installing an ignition interlock device is a simple process.

Interlocks can be configured in a variety of ways, and the type of ignition interlock device you receive is determined by the legal requirements of the state in which you reside as well as the facts of your DWI, DUI, or OWI. In addition to real-time reporting and other additional capabilities, your interlock may be fitted with or without a camera, as well as other functions.