Post-Close Trading Update

Halma PLC
25 October 2007




                                   Halma p.l.c.


                            POST-CLOSE TRADING UPDATE



Halma's trading performance for the first six months of the current financial
year is expected to be in line with the Board's expectations as the Group
continues to achieve organic revenue and profit growth.  The Board remains
positive about prospects for the current financial year and the medium term.


Growth was achieved in all three sectors and in all major geographic regions.
Industrial Safety continued to perform very well and benefited from good organic
growth.  Infrastructure Sensors and Health & Analysis both made progress and the
benefits arising from the strategic actions and additional investment in the
first half are expected to start to emerge during the second half as planned.


In October 2007, Halma acquired Sonar Research and Development ('SRD') based in
Beverley, UK for £2.4m (maximum of £2.6m).  SRD's technology complements the
activities of our existing subsea safety monitoring business, and they will
operate as part of the Tritech business.


Halma continues to search for more acquisitions in all major regions and has
allocated further dedicated resources to support these efforts.


Halma's Results for the six months to 29 September 2007 will be released on 29
November 2007.



For further information, please contact:


Halma p.l.c.                                        Tel: [phone]
Andrew Williams, Group Chief Executive
Kevin Thompson, Group Finance Director

Hogarth Partnership Limited                         Tel: [phone]
Rachel Hirst/Andrew Jaques




Notes:

1.   This Trading Update has been prepared solely to provide additional 
     information to the shareholders of Halma p.l.c., in order to meet the 
     requirements of the UK Listing Authority's Disclosure and Transparency 
     Rules. It should not be relied on by any other party, for other
     purposes. Forward-looking statements have been made by the Directors in 
     good faith using information available up until the date that they approved 
     this statement. Forward-looking statements should be regarded with caution 
     because of the inherent uncertainties in economic trends and business risks.


2.   A copy of this announcement, together with other information about Halma, 
     may be viewed on its website:  www.halma.com



                      This information is provided by RNS
            The company news service from the London Stock Exchange