Exhibit 99.1

PerkinElmer Initiates Tender Offer and Consent Solicitation

    BOSTON--(BUSINESS WIRE)--Oct. 25, 2005--PerkinElmer Inc.
("PerkinElmer") (NYSE: PKI) today announced that it has commenced a
cash tender offer for any and all of its outstanding 8 7/8% Senior
Subordinated Notes due 2013. The notes have an outstanding principal
amount of approximately $270 million. As part of this offer,
PerkinElmer is soliciting noteholders' consents to amend certain
provisions of the notes and the indenture pursuant to which the notes
were issued.
    The consent payment deadline for the consent solicitation is 5:00
p.m. New York City time on November 7, 2005 and the expiration time of
the tender offer is 9:00 a.m. New York City time on November 23, 2005.
Holders may withdraw their tenders of notes prior to 5:00 p.m. New
York City time on November 7, 2005. All of these dates are subject to
extension at PerkinElmer's election.
    The purchase price for the notes will be determined on the earlier
of (1) the first business day after the consent payment deadline and
(2) the second business day before the offer expires (such date and
time is referred to as the "price determination date") in the manner
described in the Offer to Purchase and Consent Solicitation Statement
dated October 25, 2005 that PerkinElmer has distributed to holders of
the notes. The purchase price for the notes will be a "fixed spread"
price, calculated using a yield equal to a fixed spread of 50 basis
points plus the yield to maturity of the 3.000% U.S. Treasury Note due
February 15, 2008. The purchase price for notes includes a consent
payment that is equal to $20 per $1,000 principal amount of the notes.
Holders of notes tendered after the consent payment deadline will not
receive the consent payment.
    At any time after the price determination date and prior to the
expiration time, PerkinElmer may elect to accept for payment all notes
validly tendered. Any notes validly tendered at or prior to the
expiration time and not previously accepted for payment will be paid
for promptly after the expiration time.
    PerkinElmer has retained Citigroup Corporate and Investment
Banking and Goldman, Sachs & Co. to serve as dealer managers for the
tender offer and consent solicitation. Global Bondholder Services
Corporation will serve as the depositary and information agent for the
tender offer and consent solicitation.
    Requests for documents relating to the tender offer and consent
solicitation may be directed to Global Bondholder Services Corporation
by telephone at 1-866 470-4500 (toll free) or 1-212 430-3774 or in
writing at 65 Broadway, Suite 704, New York, NY, 10006. Questions
regarding the tender offer and consent solicitation may be directed to
Citigroup Corporate and Investment Banking, Liability Management
Group, at 1-800-558-3745 (toll free) or 1-212-723-6106 (collect) or to
Goldman, Sachs & Co., Credit Liability Management Group, at 1-800
828-3182 (toll free) or 1-212-357-7867 (collect).

    This news release is neither an offer to purchase nor a
solicitation of an offer to sell the notes. The offer is being made
only pursuant to the Offer to Purchase and Consent Solicitation
Statement dated October 25, 2005, which PerkinElmer has distributed to
holders of the notes.

    PerkinElmer, Inc. is a global technology leader driving growth and
innovation in Health Sciences and Photonics markets to improve the
quality of life. The Company reported revenues of $1.7 billion in
2004, has 10,000 employees serving customers in more than 125
countries, and is a component of the S&P 500 Index. Additional
information is available through www.perkinelmer.com or
1-877-PKI-NYSE.

    CONTACT: Investor Contact:
             Dan Sutherby
             PerkinElmer, Inc.
             (781) 431-4306