Frequency any, Color any Surface Roughness Tester, Shelf Life 12 Months, Voltage any

Features pocket, Size & economically price large measuring range suitable for most materials measures flat, Outer cylinder and sloping surface both ra and rz all specifications combined instrument features external calibration at keyboard standard adhere to ISO standards and din work while, Rechargeable batteries charging technical specification model tr100 /tr110 roughness rz tracing, Parameter ra length 6mm tracing speed 1. 0mm/sec cut, Off lengths 0. 25mm/0. 8mm/2. 5mm evaluation length 1. 25mm/4. 0mm/5. 0mm measuring range ra 0. 05, 10. 0 rz 0. 1, 50 accuracy 15% repeatability filter rc analogue pick, Up piezoelectric radius and angle of the stylus point diamond, Radius 10 2. 5 angle 90, 5 or, 10 operating temperature 0, 40 relative humidity storing temperature, 25, 60 ventilation grade 3 power supply 3. 6v/2 nimh, Batteries 3. 6v li, Ion battery backlight no yes charger dc 9v, 8, 12 hours recharging time dc6v, 3 hours recharging time dimensions l w h 125 73 26mm 110 70 24mm weight 200g 160g