Director/PDMR Shareholding

Halma PLC
12 July 2005


                                 HALMA p.l.c.

                        DIRECTOR'S SHARE TRANSACTIONS

At a Meeting of the Share Plans Committee of the Board of Halma p.l.c. held on
12 July 2005, 51,866 additional ordinary shares in the Company were allotted
under the provisions of the Company's Share Option Plans to Mr K J Thompson, a
Director of the Company, following his exercise of share options. The exercise
price was 111.75p per share.

To finance the exercise of these share options Mr Thompson, together with his
wife, sold 40,074 shares on 12 July 2005 at 145p per share.

After the above transactions, the beneficial holding of Mr Thompson, including
family interests, in the ordinary shares of Halma p.l.c. increases to 72,649
shares (0.02% of the issued ordinary share capital).

Following the issue of ordinary shares as a result of share options exercised on
12 July 2005, the issued ordinary share capital of the Company is increased to
368,942,283 shares.


Contact for further information:              Andrew Williams
                                              Chief Executive, Halma p.l.c.
                                              Tel: [phone]


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



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