What is an intoxilyzer?

An intoxilyzer is a breathalyzer device used to measure the amount of alcohol in a person's breath. It is used by law enforcement officers to test drivers suspected of driving under the influence of alcohol (DUI). The intoxilyzer works by measuring the concentration of alcohol in the person's breath and displaying the results as a blood alcohol content (BAC) level. The BAC level is used to determine if the person is legally intoxicated, which is typically a BAC level of 0.08 or higher in most jurisdictions.

The intoxilyzer uses a semiconductor sensor to detect alcohol in the breath. The sensor is exposed to the person's breath, and the alcohol molecules react with the sensor to produce an electrical signal. The electrical signal is then processed by the intoxilyzer to calculate the BAC level.

Intoxilyzers are considered reliable devices for measuring BAC levels, but there are some factors that can affect the accuracy of the results, such as the person's breathing pattern, the presence of other substances in the breath, and the calibration of the intoxilyzer.