ESCO TECHNOLOGIES

Exhibit 99.1

For more information contact:                             For media inquiries:
Patricia K. Moore                                         David P. Garino
Director, Investor Relations                              (314) 982-0551
ESCO Technologies Inc.
(314) 213-7277


                  ESCO ANNOUNCES ACQUISITION OF HEXAGRAM, INC.

     St. Louis, MO, February 2, 2006 - ESCO  Technologies Inc. (NYSE: ESE) today
announced the  acquisition of Hexagram,  Inc.  (Hexagram).  The capital stock of
Hexagram was acquired for cash  consideration  of $67.5  million and a potential
working  capital  adjustment.   The  acquisition  agreement  also  provides  for
contingent  consideration  of up to $6.3  million  during  the five year  period
following the acquisition if Hexagram exceeds certain sales targets.

     Hexagram is a well  established  RF fixed network  Automatic  Meter Reading
(AMR)  company  headquartered  in  Cleveland,  Ohio.  Hexagram's  fixed  network
technology was first deployed in 1996, and currently provides AMR data from over
one  million  endpoints.  Hexagram's  system is in service at over  seventy-five
utilities  including  installations  at the water  utility  in the  District  of
Columbia  and at  Wisconsin  Public  Service  where it  provides  gas  reads and
operates alongside ESCO's Distribution Control Systems, Inc. (DCSI) electric AMR
system.  In  addition,  Hexagram  has a contract  with  Pacific Gas and Electric
Company (PG&E) covering 4.1 million gas meters with total  anticipated  revenues
over the five  year  full  deployment  period  of  approximately  $225  million.
Hexagram's  contract  with  PG&E,  like  DCSI's,  is  subject  to  a  successful
demonstration  phase,  Public Utility Commission  approval and PG&E's full-scale
deployment decision.  Annual purchase order releases are anticipated on the PG&E
program.

     Over the past three years  Hexagram's  annual revenue has been in the range
of $20 to $35 million. Excluding amortization of identifiable intangible assets,
the  acquisition is not expected to have a material impact on earnings in fiscal
2006. Including  amortization,  the acquisition may be modestly dilutive to 2006
earnings.

     Hexagram  will  continue to be led by the  existing  management  team,  and
Hexagram's  founder,  Larry Sears,  will remain as a  consultant  to the company
focused on helping Hexagram and ESCO shape their long-

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term AMR technology roadmaps.  Hexagram will operate as a stand-alone subsidiary
of ESCO and will collaborate with DCSI and Nexus Energy Software,  Inc.,  ESCO's
other utility communications businesses, where there are opportunities to better
support its customers by working together.

     In making the announcement,  Vic Richey, Chairman and CEO, commented:  "The
addition of  Hexagram  not only more than  doubles our served  market in AMR but
also allows us to offer a broader  portfolio  of products  and  technologies  to
satisfy the AMR needs of any  utility.  I have great  confidence  in the team at
Hexagram  and I am extremely  excited  about the  opportunities  created by this
combination."

     Larry Sears,  Hexagram's  founder,  stated: "By joining ESCO, Hexagram will
gain valuable additional resources. These will allow us to expand our marketing,
customer  support,  and product  development  activities,  as well as maintain a
creative and innovative environment for our employees."

     Statements  in this press  release  regarding  the  Hexagram  acquisition's
impact on fiscal 2006 earnings,  the impact of the  acquisition on the Company's
success in the AMR  market,  the total  anticipated  value and scope of the PG&E
contract  and any  other  statements  which  are  not  strictly  historical  are
"forward-looking" statements within the meaning of the safe harbor provisions of
the Federal  Securities  Laws.  Investors are cautioned that such statements are
only  predictions,  speak only as of the date of this  release  and the  Company
undertakes  no duty to update.  The Company's  actual  results in the future may
differ materially from those projected in the forward-looking  statements due to
risks and  uncertainties  that exist in the  Company's  operations  and business
environment,  including  but not limited to:  actions by the  California  Public
Utility  Commission,  PG&E's Board of Directors or PG&E's  management  impacting
PG&E's AMI projects,  the content of purchase order releases by PG&E, Hexagram's
successful  performance  under  the  PG&E  contract,   technical   difficulties,
competition,   changes  in  customers  demands,  intellectual  property  rights,
termination for convenience of the PG&E contract,  and the Company's  successful
execution of internal operating plans.

     ESCO,  headquartered  in St.  Louis,  is a leading  supplier of  engineered
filtration  products  to the  process,  health care and  transportation  markets
worldwide.  In  addition,  the  Company  markets  proprietary,  special  purpose
communications  systems and is the industry  leader in RF shielding and EMC test
products.  Further information  regarding ESCO and its subsidiaries is available
on the Company's web site, www.escotechnologies.com.

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