EXHIBIT 23.1
 
                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
To Thermedics Detection Inc.:
 
  As independent public accountants, we hereby consent to the use of our
reports dated February 3, 1997 (and to all references to our Firm) included in
or made a part of this Registration Statement and related Prospectus of
Thermedics Detection Inc.
 
                                          Arthur Andersen LLP
 
Boston, Massachusetts
   
February 18, 1997