How well do IIDs work – accuracy?

An IID is designed to perform in the relatively adverse environment of an interior of a car. The device is subjected to more difficult conditions than other law enforcement breath testing devices. The IID accounts for the imperfect conditions of a car’s cabin by allowing the driver three chances to provide a valid breath sample.

The DSP Chemical Test Section is required by WI Trans 313 to evaluate and approve all IID used in the State. This evaluation is designed to test the performance claims made by the manufacturers, and to ensure the devices work as promised. The Section evaluated IIDs with fuel cell technology. Existing semiconductor technology is subject to interferences by non-alcohol compounds, which may result in false positives and is no longer state-of-the art technology. One fuel cell models has met the Section’s standards. The Section is continuing to work with manufacturers to identify fuel cell IIDs that meet statutory requirements for performance, and is hopeful that additional fuel cell models will be available to drivers within the year.

This entry was posted on Thursday, November 13th, 2008 at 9:32 am and is filed under ignition interlock system. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.