UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
SCHEDULE 13G
(Under the Securities Exchange Act of 1934)
(Amendment No. 3)*
ESCO ELECTRONICS CORP.
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(Name of Issuer)
COMMON STOCK
---------------------------------
(Title of Class of Securities)
269030201
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(Cusip Number)
December 31, 2000
______________________________________
(Date of event which requires filing of this statement)
Check the appropriate box to designate the rule pursuant
to which this schedule is filed:
[X] Rule 13d-1 (b)
[ ] Rule 13d-1 (c)
[ ] Rule 13d-1 (d)
*The remainder of this cover page shall be filled out for a
reporting person's initial filing of this form with respect to the
subject class of securities, and for any subsequent amendment
containing information which would alter the disclosures provided in
a prior cover page.
The information required in the remainder of this cover page shall
not be deemed to be "filed" for the purpose of Section 18 of the
Securities Exchange Act of 1934 ("Act") or otherwise subject to the
liabilities of that section of the Act, but shall be subject to all
other provisions of the Act (however, see the Notes.)
[Continued on the following page(s)]
Page 1 of 4 Pages
CUSIP No. 269030201 Page 2 of 4 Pages
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1. Name of reporting person
S.S. or I.R.S. identification no. of above person
David L. Babson & Company Inc.
04-1054788
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2. Check the appropriate box if a member of a group
(a)( )
(b)( X )
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3. SEC use only
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4. Citizenship or place of organization
Massachusetts
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Number of shares beneficially owned by each Reporting person
with
5. Sole Voting Power
276,200.00
________________________________
6. Shared Voting Power
0
________________________________
7. Sole Dispositive Power
276,200.00
__________________________________
8. Shared Dispositive Power
0
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9. Aggregate amount beneficially owned by each reporting person
276,200.00
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10. Check if the aggregate amount in row (9) excludes certain shares*
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11. Percent of class represented by amount in row 9
2.24%
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12. Type of Reporting person
IA
Page 3 of 4 Pages Cusip #: 269030201
SCHEDULE 13G
ITEM 1(A): NAME OF ISSUER:
ESCO ELECTRONICS CORP.
1(B): ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:
8888 Ladue Road, Suite 200
St. Louis, MO 63124-2090
ITEM 2(A): NAME OF PERSON FILING:
David L. Babson & Company Inc. ("DLB")
ITEM 2(B): ADDRESS OF PRINCIPAL BUSINESS OFFICE:
One Memorial Drive
Cambridge, Massachusetts 02142-1300
ITEM 2(C): CITIZENSHIP:
See Item 4 of Cover Page
ITEM 2(D): TITLE OF CLASS OF SECURITIES:
See Cover Page
ITEM 2(E): CUSIP NUMBER:
See Cover Page
ITEM 3: TYPE OF REPORTING PERSON:
If this statement is filed pursuant to Sections 240.13d-1 (b)
or 240.13d-2 (b) or (c), check whether the filing person is a:
(e) [x] An investment adviser in accordance with
Section 240.13d-1 (b) (1) (ii) (E)
ITEM 4: OWNERSHIP:
(a) AMOUNT BENEFICIALLY OWNED: DLB, in its capacity as investment
adviser, may be deemed the beneficial owner of 276,200.00 shares of
common stock of the Issuer which are owned by numerous investment
advisory clients.
(b) PERCENT OF CLASS: 2.24%
(c) For information on voting and dispositive power with respect to the
above listed shares, see Items 5 - 8 of Cover Page.
Page 4 of 4 Pages Cusip #:269030201
ITEM 5: OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS:
If this statement is being filed to report the fact that as of the
date hereof the reporting person has ceased to be the beneficial
owner of more than five percent of the class of securities check
the following: [X]
ITEM 6: OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON:
Not Applicable
ITEM 7: IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH
ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING
COMPANY:
Not Applicable
ITEM 8: IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP:
Not Applicable
ITEM 9: NOTICE OF DISSOLUTION OF GROUP:
Not Applicable
ITEM 10: CERTIFICATION:
By signing below I certify that, to the best of my knowledge and
belief, the securities referred to above were acquired in the
ordinary course of business and were not acquired for the purpose of
and do not have the effect of changing or influencing the control of
the issuer of such securities and were not acquired in connection
with or as a participant in any transaction having such purpose or
effect.
SIGNATURE:
After reasonable inquiry and to the best of my knowledge and
belief, I certify that the information set forth in this statement
is true, complete and correct.
Date: January 17, 2001
Signature: --//John E. Deitelbaum//--
Name/Title: JOHN E. DEITELBAUM
Counsel