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How does an ignition interlock device work?

On Behalf of | Jul 29, 2022 | DUI/DWI

Judges have discretion when it comes to punishing individuals guilty of drunk driving. One of their terms may be the imposition of an ignition interlock device.

These gadgets make it impossible for intoxicated drivers to start their vehicles. The application of interlock device laws differs from region to region. In New York state, Leandra’s Law makes them mandatory for anyone guilty of aggravated DWI. Authorities in each area of the country set the blood alcohol concentration thresholds. Those with interlock devices should understand what makes these modern marvels tick.

How does an ignition interlock device work?

A locked car engine will not turn over until air gets blown into the mouthpiece resting near the front seat. The system houses fuel cells that determine whether ethanol is present. They turn small amounts of alcohol into electrical currents that block motors. When alcohol is absent, the signal passes from ignition to starter and the vehicle roars to life.

What should everyone know about calibrating an interlock device?

Ignition locks cannot function unless they receive regular calibration. The jurisdiction you live in determines how often this must happen. You will probably have to perform this duty once every month or two. The task typically takes between 15 and 20 minutes. Modern systems provide alerts when tune-up deadlines are coming. Only a service professional can complete these updates.

Blowing into a tube for the privilege of driving may be frustrating. Despite this, citizens with DUI convictions would lack any right to drive without one. They should give thanks for this magical piece of technology.