3D Displacement Sensors 3D displacement sensors that are alternatives to FARO Arm and Romer (Hexagon) portable arm CMMs Easily-mounted 3D displacement sensors can be used as motion control sensors, coordinate measurement machines (CMMs), or digitizers. These displacement sensors offer fast setup, optional wireless interfacing, and out-of-the box functionality. Based on SpaceAge Control's 40 years of of 1D, 2D, and 3D position measurement heritage, the products are easily customized for specific applications.