Gas Monitoring is used in industries where there is the potential for toxic gases to be present like the mining industry and it is also used in to protect people in their day-to-day lives with the measurement of exhaust fumes in a car park. br br Contact Us: br HK Calibration Technologies PTY. LTD br Address: Unit 820 Loyalty Road, North Rocks, Sydney, NEW 2151, Australia br Phone: 1300 309 881 br Fax: 1300 885 178 br Email: info@hkcalibrations.com.au br Web: www.hkcalibrations.com.