In terms of operation, which is considered a significant improvement of the Intoxilyzer 9000 over previous models?

The Intoxilyzer 9000 represents a notable advancement in breath alcohol testing technology primarily due to its automation and reduction of human error. This modernization enhances the reliability and accuracy of test results. By automating key processes, the device minimizes the likelihood of mistakes that may occur during manual operation, such as incorrect sample collection or improper calibration. This improvement ensures that the tests are more consistent and trustworthy, which is essential in legal and law enforcement contexts.

In contrast, features like reduced costs, increased manual control, or longer calibration times do not directly contribute to the operational enhancements that define the Intoxilyzer 9000's superiority. Many prior models relied heavily on manual input, which could introduce variability between tests; thus, the shift toward a more automated process in the Intoxilyzer 9000 stands out as a pivotal upgrade in the field of breath alcohol analysis.