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NOTICE OF GUARANTEED DELIVERY
FOR
TENDER OF SHARES OF COMMON STOCK
OF
THERMEDICS DETECTION INC.
As set forth in the section captioned "The Tender Offer -- Procedures For
Accepting The Offer And Tendering Shares" in the Offer to Purchase described
below, this Notice of Guaranteed Delivery or one substantially in the form
hereof must be used to tender shares of common stock, par value $0.10 per share
(the "Shares"), of Thermedics Detection Inc., a Massachusetts corporation (the
"Company"), pursuant to the Offer (as defined below) if certificates evidencing
Shares are not immediately available or the certificates evidencing Shares and
all other required documents cannot be delivered to American Stock Transfer &
Trust Company (the "Depositary") prior to the Expiration Date (as defined in the
Offer of Purchase), or if the procedures for delivery by book-entry transfer
cannot be completed on a timely basis. This instrument may be delivered by hand
or transmitted by facsimile transmission, overnight courier or mail to the
Depositary.
The Depositary for the Offer is:
AMERICAN STOCK TRANSFER & TRUST COMPANY
By Mail: By Hand or Overnight Courier:
40 Wall Street 40 Wall Street
46th Floor 46th Floor
New York, New York 10005 New York, New York 10005
Attn: Reorganization Department Attn: Reorganization Department
By Facsimile Transmission:
(718) 234-5001
Confirm by Telephone:
(718) 921-8200
DELIVERY OF THIS NOTICE OF GUARANTEED DELIVERY TO AN ADDRESS OTHER THAN AS
SET FORTH ABOVE, OR TRANSMISSIONS OF INSTRUCTIONS VIA A FACSIMILE NUMBER OTHER
THAN AS SET FORTH ABOVE, WILL NOT CONSTITUTE A VALID DELIVERY.
This Notice of Guaranteed Delivery is not to be used to guarantee
signatures. If a signature on a Letter of Transmittal is required to be
guaranteed by an Eligible Institution (as defined in the Offer to Purchase)
under the instructions thereto, such signature guarantee must appear in the
applicable space provided in the signature box in the Letter of Transmittal.
THE GUARANTEE ON THE REVERSE SIDE MUST BE COMPLETED.
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Ladies and Gentlemen:
The undersigned hereby tenders to Detection Acquisition, Inc., a Delaware
corporation and an indirect wholly-owned subsidiary of Thermedics Inc., a
Massachusetts corporation, upon the terms and subject to the conditions set
forth in the Offer to Purchase dated March 10, 2000 (the "Offer to Purchase")
and in the related Letter of Transmittal (which, together with any amendments or
supplements thereto, collectively constitute the "Offer"), receipt of each of
which is hereby acknowledged, the number of Shares indicated below pursuant to
the guaranteed delivery procedures set forth in the section of the Offer to
Purchase captioned "The Tender Offer -- Procedures For Accepting The Offer And
Tendering Shares."
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Signature(s): ______________________________________________
Name(s) of Record Holder(s): _______________________________
____________________________________________________________
____________________________________________________________
Please Type or Print
Number of Shares: __________________________________________
Share Certificate No(s).(if available): ____________________
____________________________________________________________
____________________________________________________________
Dated: _______________________________________________, 2000
Address: ___________________________________________________
____________________________________________________________
Zip Code
Area Code and Tel. No.(s): _________________________________
Check box if Shares will be tendered by book-entry
transfer: [ ]
DTC Account Number: ________________________________________
GUARANTEE
(Not to be used for signature guarantees)
The undersigned, a firm which is a commercial bank, broker, dealer,
credit union, savings association or other entity which is a member in good
standing of the Securities Transfer Agents Medallion Program, the Stock
Exchanges' Medallion Program or the New York Stock Exchange, Inc. Medallion
Signature Program, hereby guarantees to either deliver to the Depositary
certificates evidencing all the Shares tendered hereby, in proper form for
transfer, or to deliver such Shares pursuant to the procedure for book-entry
transfer into the Depositary's account at The Depository Trust Company, in
either case together with the Letter of Transmittal (or a facsimile thereof),
properly completed and duly executed, with any required signature guarantees
or an Agent's Message (as defined in the Offer to Purchase) in the case of a
book-entry transfer, and any other required documents, all within three
American Stock Exchange trading days after the date hereof.
Name of Firm: _________________________________________________________________
Address: ______________________________________________________________________
_______________________________________________________________________________
Zip Code
Area Code and Tel. No.: _______________________________________________________
Authorized Signature: _________________________________________________________
Name: _________________________________________________________________________
Title: ________________________________________________________________________
Dated: __________________________________________________________________, 2000
NOTE: DO NOT SEND CERTIFICATES WITH THIS NOTICE OF GUARANTEED DELIVERY.
CERTIFICATES SHOULD BE SENT WITH YOUR LETTER OF TRANSMITTAL.
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