Director/PDMR Shareholding

Halma PLC
23 March 2006


                                    HALMA p.l.c.

                          DIRECTOR'S INTEREST IN SHARES



Halma p.l.c. has received notification that Mr A J Walker, a non-executive
Director of the Company, acquired a beneficial interest in 66,020 ordinary
shares in the Company at 187.9244p per share on 22 March 2006.  The shares will
be registered in Mr Walker's name as a trustee of the McKechnie FURBS for A.J.
Walker, a Funded Unapproved Retirement Benefit Scheme of which Mr Walker is a
beneficiary.

After the above transaction, the beneficial holding of Mr Walker, including
family interests, in the ordinary shares of Halma p.l.c. amounts to 71,520
shares (0.0194% of the issued ordinary share capital).





For further information, please contact:



Andrew Williams                       [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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