Lear Siegler Australasia Pty. Ltd. (LSA) is an Australian owned company with over 42 years of experience in environmental technology and process control. The company was established in 1975 as a division of Lear Siegler Inc. (LSI) in Santa Monica, California USA to introduce to Australia a range of equipment manufactured by LSI for analysis of stack gas and ambient air. The equipment was intended to be used for control of combustion efficiency, for measurement and control of emission of pollutants and also for measurement of pollution in ambient air. LSA has full geographical coverage of Australia and New Zealand. We have an extensive installed base in key industries including mining, power generation, petrochemical, paper, timber, sugar, base metals, refineries, food, plastics, brewing, research and environmental protection.