CA2000 Digital Alcohol Detector, also known as a breathalyzer.
Here's what you should know about it:
Function:
It measures the alcohol content in a person's breath to estimate blood alcohol concentration (BAC).
How it works:
It uses a semiconductor sensor that reacts to alcohol in the breath, converting it to a digital reading of BAC.
Accuracy:
It is considered highly accurate due to the use of a sophisticated sensor. However, breathalyzer readings can vary from actual blood alcohol levels, with some studies showing a variance of at least 15%.
Usage:
It's used to prevent drunk driving, for employee alcohol testing, patient testing, and personal impairment checks.
Limitations:
It is recommended to wait 20 minutes after drinking before testing to avoid measuring oral alcohol concentration instead of blood alcohol concentration.