Halma, the safety, health and environmental technology group, is to unveil a 14% year-on-year increase in its first quarter revenue at its annual general meeting on Thursday. Company chairman, Geoff Unwin, said: "Trading since the start of the financial year has been in line with the board's expectations."The revenue uplift in the April to June quarter included a positive benefit of 8% from acquisitions and a negative impact of 2% from currency translation. Order intake rose slightly faster than revenue."All three sectors increased revenue and profit. Health and Analysis is benefiting strongly from the expected contribution of recent acquisitions, whilst Infrastructure Sensors is making steady progress. Industrial Safety continued to make good progress following a strong improvement in the last financial year.The company has acquired two businesses since the start of its financial year: Kirk Key Interlocks, based in Ohio, USA for $14.7m (£9.0m) and AVO Photonics, based in Pennsylvania, USA for an initial consideration of $9m (£5.6m).Unwin said good progress continues to be made in Asia while revenue growth in UK and Europe is outstripping the rate of growth in the USA. NR