Disposal

Spirent PLC
12 November 2001

                                                   795 - 12 November 2001


                                SPIRENT PLC

                SALE OF SENSING SOLUTIONS BUSINESS COMPLETED


Spirent plc, the international network technology company, has completed the
sale of its Sensing Solutions business to a company formed by GE Industrial
Systems, a division of General Electric Company of the United States,
following satisfaction of all conditions in the sale agreement. Spirent
announced the divestment of its Sensing Solutions business on 10 September
2001.

Nicholas Brookes, Chief Executive of Spirent, reiterated the comment made
when the sale was announced:

'The divestment of our Sensing Solutions business is the next step in our
strategy to focus on communications activities. We believe that the Sensing
Solutions business faces a promising future under its new owners who can
provide strong manufacturing and marketing resources to achieve its
potential.'

                                    - ends -

Enquiries:

Nicholas Brookes, Chief Executive   Spirent plc            [phone]
Eric Hutchinson, Finance Director

Jon Coles/Rupert Young              Brunswick (London)     [phone]

Background note:

Spirent plc is an international network technology company providing
state-of-the-art solutions with a focus on high growth, high margin
activities. Our Communications group unites leading edge performance analysis
technology with network operations expertise, enabling customers to
accelerate the development, deployment and assurance of next generation
network equipment and services worldwide. Further information about Spirent
plc can be found at www.spirent.com

Spirent plc is listed on the London Stock Exchange (ticker: SPT) and on the
New York Stock Exchange (ticker: SPM; CUSIP number: 84856M209) with one
American Depositary Receipt representing four ordinary shares.

Spirent and the Spirent logo are trademarks of Spirent plc. All rights
reserved.

This press release may contain forward-looking statements that are based on
current expectations or beliefs, as well as assumptions about future events.
You can identify these statements by their use of words such as 'will',
'anticipate', 'estimate', 'expect', 'project', 'intend', 'plan', 'should',
'may', 'assume' and other similar words. You should not place undue reliance
on our forward-looking statements, which are not a guarantee of future
performance and are subject to factors that could cause our actual results to
differ materially from those expressed or implied by these statements. Such
factors include: aggressive competition; our ability to develop and
commercialise new products and services; risks relating to the acquisition or
sale of businesses; our reliance on third party manufacturers and suppliers;
our exposure to liabilities for product defects; our reliance on proprietary
technology; our ability to grow in e-commerce; our ability to attract and
retain qualified personnel; risks of doing business internationally; and
risks of downturns in the industries in which we participate; and other risks
described from time to time in Spirent plc's Securities and Exchange
Commission periodic reports and filings. We undertake no obligation to update
our forward-looking statements, whether as a result of new information,
future events or otherwise.