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Intoxilyzer®  is a registered trademark of CMI, Inc. The Intoxilyzer® 5000C is an "approved instrument" in Canada.

Breathalyzer® is a registered trademark of Draeger Safety, Inc., Breathalyzer Division. The owner of the trademark is Robert F. Borkenstein and Draeger Safety, Inc. has leased the exclusive rights of use from him. The Breathalyzer® 900 and Breathalyzer® 900A were "approved instruments" in Canada.

Alcotest® is a registered trademark of Draeger Safety, Inc. The Alcotest® 7410 GLC and 6810 are each an "approved screening device" in Canada.

Datamaster®  is a registered trademark of National Patent Analytical Systems, Inc.  The BAC Datamaster® C  is an "approved instrument" in Canada.

DUI Metrology Dictionary

Wet bath simulator (in the context of the Intoxilyzer)

A separate test instrument, usually manufactured by Guth Industries, with its own serial number and maintenance history. It is not an "approved instrument". It holds liquid (in Ontario) alcohol standard that is poured into the simulator jar about once a week or whenever the qualified technician chooses to change the alcohol standard. The bottom jar is similar to an old glass peanut butter jar. The upper housing contains electronics and probes that go down into the liquid. The simulator holds the alcohol standard (liquid below and gas in the headspace above) at a temperature of 34 degrees C plus or minus .2 C.