A sensor carrier module for use in a pipeline pig may include a plurality of skids arranged about an axis of the sensor carrier module, and a flexible section. Each skid typically includes an upstream end, a downstream end, and at least one sensor between the upstream end and the downstream end. Each sensor may be configured to sense a parameter of a wall of a pipeline. The flexible section may be attached to the downstream ends of the skids and to a flange. The flexible section may include wheels configured to roll along the interior surface of the pipeline as the sensor carrier module passes through the pipeline, and a force system to apply a radial force that urges the wheels to interface with the interior surface of the pipeline.