DFT Tester(PreciseTHICKNESS GAUGE CTG-222)Specification-Range: 0-1250 Microns Principle Magnetic Induction Resolution: 0.10/1.0 Accuracy: +-(1-3%) or 2.5 microns Minimum Area 5mm Minimum Sample Thickness: 0.3mm Standards: ISO2178, ISO2360 , DIN , ASTM Operating Temperature: 0-45 C Dimension: 102 x 66 x 24mm Weight: 100 grams