CLA-2-85 90:S:N:N1:112 887089
Ms. Judy Campbell
W.Y. Moberly, Inc.
U.S. Customs Broker
Box 164
Sweetgrass, Montana 59484
RE:  The tariff classification of gas monitoring units from Canada.
Dear Ms. Campbell:
     This classification decision under the Harmonized Tariff
Schedule of the United States (HTS) is being issued in accordance
with the provisions of Section 177 of the Customs Regulations (19
C.F.R. 177).
     DATE OF INQUIRY   :    May 31,1993
     ON BEHALF OF      :    B&W Technologies Ltd.
     DESCRIPTION OF
     MERCHANDISE       :    The self-contained gas monitoring units
include                                the Oxyclip, Toxyclip, Pack
Rat, Alarm Rat, and                                Plant Rat.  They
are all comprised of a sensor
                            (to measure the parts per million of
a gas) and                                electronics (to determine
when the gas goes beyond                              the
designated range.  They are used to alert                        
         people to a potentially dangerous situation by          
                      either sounding an alarm or flashing a light. 
The                              Oxyclip and the Toxyclip do not
have the ability                               to give visual
readouts of the gas measurements.                               The
Pack Rat, Alarm Rat, and Plant Rat, have the                     
         ability to display visual readouts of the gas           
                      level measurements, in addition to the
audible                                 alarm tone and the flashing
lights.                                          
                           
HTS PROVISION     :    Electric sound or visual signalling
apparatus:                                 Burglar or fire alarms
and similar apparatus...                                Other:
Other... for the Oxyclip and Toxyclip.
     HTS SUBHEADING    :    8531.10.0045
     RATE OF DUTY      :    2.7 percent ad valorem
     HTS PROVISION     :    Gas or smoke analysis apparatus:
Electrical... for                             the Pack Rat, Alarm
Rat, and Plant Rat.
     HTS SUBHEADING    :    9027.10.2000
     RATE OF DUTY      :    4.9 percent ad valorem
     DUTY CONCESSION   :    Goods classifiable under subheadings
8531.10.0045                             and 9027.10.2000, HTS,
which have originated in                                the
territory of Canada, will be entitled to a                       
         free rate of duty under the United States-Canada        
                      Free Trade Agreement (FTA) upon compliance
with                                all applicable regulations.
     A copy of this ruling letter should be attached to the entry
documents filed at the time this merchandise is imported.  If the
documents have been filed without a copy, this ruling should be
brought to the attention of the Customs officer handling the
transaction.
                                    Sincerely,
Jean F. Maguire
                                    Area Director
                                    New York Seaport