You’ll find that operating an ignition interlock device is a relatively simple process. It is just like using a breathalyzer. When you get into your car, you will be required to blow into the device. From your breath, the ignition interlock device will measure your blood alcohol concentration and determine if it is above or below a certain threshold that has been established by your state. Provided that the device’s analysis determines that your blood alcohol concentration is below the threshold, you will be allowed to turn the ignition and start your car. Otherwise, the ignition interlock device will prevent you from starting and operating your vehicle.
In many states, the ignition interlock device is also required to administer periodic and random tests while the vehicle is in operation. When this happens, the ignition interlock device will signal that it is time for a test. As before, you will be required to blow into the device, and it will determine if your blood alcohol concentration is above or below the preset threshold. If it is below the threshold, then you will be permitted to keep driving your vehicle as normal. If you measure above the threshold, then the car will signal loudly that it is time to pull over and turn the car off. You may think that you can continue to drive the vehicle after this happens, but trust us when we say that you won’t want to.
In addition to the above, many states also require that an ignition interlock device be interfaced with an electronic log, which tallies test results. Generally, the authorities will check these test results at a regular interval, which varies state to state. In some cases, though, you’ll find that your state prefers to have the test results transmitted wirelessly.
Finally, you’ll also want to note that due to their sensitivity, your ignition interlock device will have to be calibrated fairly regularly. It’s a simple procedure, though, and one that you’ll want to comply with. Failure to do could land you in serious trouble.