Flow speed measurement in gas conduit by pitot tube using GOLIATH s integrated differential pressure sensor. Menu-prompted operation and display of flow speed in m/s and gas concentration in volume %. Documentation of measurement by recording speed and gas concentration versus time. This option is only available in new equipment and cannot be retrofitted. It is available for GOLIATH versions Allround, Pipe Network and Pipe Construction and cannot be combined with the options Pressure Measurement, Ethane Analysis and Propane Measurement.