1)With high accuracy and quality 2)Competitive prices 3)portable surface profile gauge 4) Warranty lifetime maintenance Portable Surface profile gauge DR-431AApplications:Specially used to take accurate measurement of the peak-to-valley height of the surface profile of the surface profile of blast cleaned surfaces.SpecificationsDisplay : 4 digits,10mm LCD.Range: 0 µm to 800 µm (0 mils to 30 mils)Accuracy: ±5% or ±5 µm,(whichever is the greater)Resolution: 1 µm (0.1 mils)Metric and Imperial switchablePC interface RS232CMeasurement speed: >30 readings per minuteWeight: 280 gDimensions: 162 x 65x 28 mm (6.4 x 2.6 x 1.1 inch)Operating temperature: 0°C to 40°C, <80%RHCase: High impact ABSBatteries: 2 x 1.5v (AAA) batteryStandard accessories:   Carrying case 1 pc.   Operation manual 1 pc. Optional accessories:   cable and software for RS232COptional function:     bluetooth(Including software)