From: Fred Bloggs
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Subject: Re: Defeating Breathalyzer Ignition Interlocks
References: <3E160F0D.B23A8BE5@sympatico.ca> <3E165F62.firstname.lastname@example.org> <email@example.com> <firstname.lastname@example.org> <email@example.com> <firstname.lastname@example.org> <email@example.com> <firstname.lastname@example.org>
Date: Sun, 05 Jan 2003 17:57:24 GMT
NNTP-Posting-Date: Sun, 05 Jan 2003 09:57:24 PST
Organization: EarthLink Inc. -- http://www.EarthLink.net
Jim Yanik wrote:
> "Michael Culley" wrote in
>>>You really would trust one of those POS consumer products over
>>>keeping track yourself? When so much is potentially on the line?
>>You're right, I wouldn't trust it that much, but if it showed 0.01 or
>>0.02 I'd probably have another beer. If it said 0.03 or 0.04 I
>>probably wouldn't (the limit here is 0.05). Others might not be so
> You forgot,the device I mentioned has NO readout of BAC,it has a
> OK/notOK(go/no go) LED's. Either you are under the limit or over.If
> under,you have no indication of how much under.
The "best" breathalyzer is made by CMI:
A paste from another website::::
The manufacturer of the "Intoxilyzer" line of breath screening and
evidential devices is CMI, a Kentucky corporation based in Owensboro,
Kentucky. The breath testing device was originally developed by Richard
A. Harte of Omicron Systems Corporation of Palo Alto, CA, and was
originally called the "Omicron Intoxilyzer."
Varying models of the "Intoxilyzer" are in use by more than 35 states,
and nearly 30 states have it as their sole breath testing device. It is
the most widely used breath testing device in America, although there
are numerous versions or models in use: Models 4011, 4011A, 4011AS,
4011AS-A, and the 5000. There are various "series" of the 5000,
including the 568G, used by Oregon, the 564, used by Alabama, the 568
series used by Florida and the series 768GA used by Georgia.
The machine formerly used by Georgia was the Intoximeter 3000, Model
B-2A. The Intoximeter 3000 is no longer being manufactured by
Intoximeters, Inc. The company is now marketing a new machine called the
The Intoximeter 3000 was the first infrared machine with computer
capabilities. However, after the GBI removed or disengaged the Taguchi
cells in the machine in 1984 [See Lattarulo v. State, 261 Ga. 124, 401
S.E.2d 516 (1991)], the 3000 (as used in Georgia) had lost its
capability to distinguish between alcohol and other volatile chemicals
having similar infrared "fingerprints." Without the Taguchi cell, the
instrument was simply a single wavelength infrared tester, which was
totally NON-SPECIFIC for ethanol (alcohol). Hence, it was used to
convict many persons who had unknown concentrations of alcohol on their
breath, but which could very well have been "mixed" with toluene,
acetone, benzene, methyl ethyl ketone or an array of other "like"
substances. See Oxley v. State, 210 Ga. App. 296, 435 S.E.2d 705 (1993).
Earlier models of the 5000 had a three filter design which identified
only acetone, other than detecting ethanol. The acetaldehyde detector
was offered as an option by CMI using the three filter design. Other
chemicals could not reliably be detected or reported. The three-filter
machine was similar to an Intoximeter 3000 with a working Taguchi cell,
except that the Intoxilyzer 5000 checked for the presence of ethyl
alcohol at two wavelengths. The request for a more "sophisticated"
machine led to development by CMI of the machine (the Intoxilyzer 5000,
Series 768GA) purchased by Georgia and other states. This machine has
five filters which center on 3.80, 3.40, 3.47, 3.52 and 3.36 microns of
the infrared spectrum. These are designed to detect ethyl alcohol (2
bands), acetone, acetaldehyde and toluene.
They have a range of products :
You can get a good overview of breathalyzer basics and state-of-the-art
products there. Breathalyzer testing is becoming more commonplace-
apparently bringing in a lot of airline pilots lately.