Halma has acquired Advanced Electronics, the Newcastle-based fire detection systems manufacturer, for an initial £14m.
Halma has acquired ASL Holdings, the Northampton-based manufacturer of machine-to-machine communication products, for £6.5m.
Halma has sold its Tritech sub-sea asset monitoring business to Moog Components for £21m.
Halma has acquired Avo Photonics, the US photonic components manufacturer, for an initial £5.6m.
Halma has acquired the water technology division of Wagtech International for £3m, in order to expand its Palintest business in Gateshead.
Halma has acquired Alicat Scientific, the US supplier of industrial flow meters and controllers, for £16m.
Halma has acquired Fiberguide Industries, the US optical fibre manufacturer, for £8.2m.
Halma has acquired PP Medizintechnik, the German manufacturer of small diagnostic medical devices, for £39m.
Halma has acquired Labsphere, the US manufacturer of light testing and measurement products, from X-Rite for £7m.
Halma has secured a £60m debt facility to fund acquisitions for its Amersham-based safety products business.
Halma has acquired Tritech Holdings, the Aberdeen-based manufacturer of underwater asset monitoring equipment, for an initial £8m.
Halma has acquired Mikropack GmbH Aufbautechnik in der Sensorik, the German manufacturer of photonic accessories, for £1.5m.
Halma has sold its high-power resistors business to Telema of Italy for £13m.
Halma has acquired Texecom, the Manchester-based manufacturer of security sensor and alarm products, for £26m.
Halma has acquired Radio-Tech, the Essex-based manufacturer of wireless data transmission systems, for £2m.
Halma is to acquire Ocean Optics, the US supplier of optical sensing systems, for an initial £14m.
Halma has acquired Diba Industries, the US supplier of fluid transfer equipment, for £7.9m.
Halma has acquired Radcom, the Hampshire-based manufacturer of pipe monitoring equipment, for £2.9m.
Halma is to acquire BEA, the Belgian supplier of automatic door sensors, for £46m.
Halma, the safety equipment group, is planning to spend up to £80m on acquisitions.
Halma has acquired Wessex Electronics, the manufacturer of equipment to reduce leakage in the water industry, for £2m.
Halma is to close three underperforming businesses - Medical Imaging Systems, Marathon Monitors, and an analysis company operating in the gas industry.
Halma has acquired Research Engineers, the maker of gas detection instruments, for £1.6m.