Director/PDMR Shareholding

Halma PLC
01 April 2008


                               HALMA p.l.c.

                     DIRECTOR'S INTEREST IN SHARES


On 1 April 2008, Halma p.l.c. received notification from Mr K J Roy, Director of
the Company, that he had sold 718,039 shares at 198.25 pence per share and his
wife, Mrs L Roy, had purchased 718,039 shares at 198.25 pence per share on 1
April 2008.  These transactions were entered into in the light of forthcoming
changes to Capital Gains Tax rules effective 6 April 2008.


After the above transactions, the beneficial holding of Mr Roy, including family
interests, in the ordinary shares of Halma p.l.c. remains unchanged at 764,057
shares (0.2049% of the issued ordinary share capital excluding treasury shares).


For further information, please contact:

Andrew Williams                          Tel  [phone]
Chief Executive, Halma p.l.c.


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




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