EXHIBIT 99.1

 ESCO TECHNOLOGIES

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 CLOSING OF DOBLE ACQUISITION

     ST. LOUIS,  December 3, 2007 - ESCO  Technologies  Inc.  (NYSE:  ESE) today
announced  that  it  has  completed  its  $319  million   acquisition  of  Doble
Engineering  Company.  Doble,  headquartered in Watertown,  Massachusetts,  is a
worldwide  leader in  providing  high-end,  diagnostic  test  solutions  for the
electric utility industry.

     The  acquisition  was  funded by a  combination  of ESCO's  existing  cash,
including  the proceeds  from the partial  divestiture  of  Filtertek  announced
November 26, 2007, and borrowings  under a new $330 million credit  facility led
by National City Bank.

     Doble's annual revenue and EBIT for the trailing 12 months ended  September
30,  2007 was  approximately  $80  million and $24  million,  respectively.  The
acquisition  is expected to be accretive to ESCO's  earnings per share in fiscal
2008, excluding amortization of intangible assets.

     Doble will  continue  to be led by its  existing  management  team and will
operate as a stand-alone subsidiary within ESCO's Communications segment.

     As a result of the Filtertek  divestiture and the Doble  acquisition,  ESCO
will update its fiscal 2008  Business  Outlook  guidance in early  January  upon
completion  of Doble's  2008  operating  plan,  and the  valuation  of  purchase
accounting related intangible assets.

     Vic Richey, ESCO's Chairman and Chief Executive Officer, commented, "We are
very excited about  completing  this  acquisition  and the  immediate  financial
impact it will have on our operations.  Doble  supplements our commitment to the
utility  industry and allows us to participate  more  meaningfully in support of
the Intelligent Grid. As part of our Communications  segment,  Doble is expected
to provide consistent sales revenue which will help offset the somewhat cyclical
nature of AMI spending.  We have now positioned ourselves to be a total solution
provider of proven and secure AMI offerings, home area networks (HANs), and data
analytics that aid the utility industry in energy  efficiency and reliable power
delivery."

     Mr. Richey concluded,  "Utilities and other power delivery companies face a
host of near-term  challenges  including  system expansion  requirements,  aging
infrastructures,  and a  heightened  focus on return on assets.  Having Doble on
board will allow us to further leverage its domestic market leadership  position
into  international  sales  growth,  thereby  considerably  enhancing its market
position globally."

Forward-Looking Statement

Statements in this press release regarding the impacts, financial and otherwise,
of the Doble  acquisition to ESCO,  future  revenues,  the  consistency of Doble
sales,  ESCO's  ability to leverage its  position  resulting in sales growth and
other  statements  that  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:  material  changes  in the  Doble
business,  technical  difficulties,  competition,  changes in customer  demands,
intellectual  property rights,  the Company's  successful  execution of internal
operating  plans and the risk  factors  identified  in Item 1A of the  Company's
Annual Report on Form 10-K for the fiscal year ended  September 30, 2007.

ESCO,headquartered  in St.  Louis,  is a  proven  supplier  of  special  purpose
communications systems for electric, gas and water utilities, including hardware
and software to support advanced metering applications. In addition, the Company
provides engineered filtration products to the transportation,  health care, and
process  markets  worldwide  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 website at www.escotechnologies.com.

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