The ALTOSONIC 5 is a multi-path ultrasonic flowmeter for custody transfer (CT) measurement in upstream and midstream applications of the oil and gas industry. The high accuracy meter is suitable for measuring all types of crudes in transportation, processing, loading or offloading applications as well as all types of refined products or chemicals. Due to its unique paths configuration, the ALTOSONIC 5 is suitable for all flow regimes without Reynolds number limitations. In addition, a vertically mounted transducer pair detects gas on top of the liquid.