Laboratory gas cylinder changeover units are specialised systems designed to automatically switch the gas supply from one cylinder to another when the primary cylinder is depleted. These units ensure a continuous and uninterrupted flow of gases, which is essential in laboratories conducting sensitive experiments or processes that rely on a stable gas supply. Changeover units are equipped with pressure regulators, alarms, and gauges to monitor gas levels and ensure safe operation. By eliminating downtime and manual intervention, these systems enhance efficiency and safety in laboratory environments. They are widely used for supplying gases such as nitrogen, oxygen, or argon in research, medical, and industrial laboratories where precision and reliability are critical.