Acu-Rite DRO Digital Read Out 2 Axis 200S 2X G 532882-02 Scales Not Included December 1, 2023 admin Scales are not included. DRO operates as designed. Linear axis: 1 mm to 0.0001 mm. Angular axis: 1° to 0.001° (00° 00′ 01). Centerline calculation enables you to establish workpiece zero and midpoints.