Portable Surface Roughness Tester, Features Compatible with New Standard Iso 21920; Dedicated In.SJ-APP In. for Increased Efficiency of Measurement Work; The Display Interface Supports 25 Interchangeable Languages, Analysis Graph Displayed Evaluation Curves can be Zoomed In/Out, Number of Sampling Spans ×1, ×2, ×3, ×4, ×5, ×6, ×7, ×8, ×9, ×10, Power Supply Battery, Includes Battery, Tester Series SJ-200