Flare gas flow meters are used for the precise measurement of surplus and combusted gases in flare stacks within the oil and gas, petrochemical, and refinery industries. Accurate measurement of these gases is crucial, not only for supporting safety and pressure relief operations, but also for ensuring compliance with environmental standards and reducing atmospheric pollutants. These meters typically employ advanced technologies such as ultrasonic flow meters, capable of operating under highly challenging conditions, including low temperatures, low pressures, and the presence of heterogeneous gas mixtures. A key feature of these meters is their ability to measure flows across a wide turndown ratio, from very low to very high flow rates, which is essential for precise monitoring under both normal and emergency conditions. The Flare Gas Metering Package is a comprehensive and ready-to-use system that includes all the necessary equipment for measuring, monitoring, and accurately recording flare gas flow. This package goes beyond a simple flow meter, integrating a complete set of critical components mounted on a single skid. The main components include precision flow meters, temperature and pressure sensors for measurement correction and compensation, a flow computer for data calculation and recording, and a local control and display system for easy operator access to information.