Panel meter, clear plastic face, D'Arsonval type movement, 1.73" square face. Meters fit into 1.5" diameter hole in panel and are calibrated to be accurate within 2%. Has zero set screw adjustment. Will enhance the looks of any equipment on which it is used. Available in bulk or packaged. Comes with meter cut out template and mounting hardware. 60-201 mounting hardware only for Calrad meters 60-150 to 60-175.