Specification BatteriesIncluded : 1 BatteriesRequired : 1 Brand : VTSYIQI BulletPoint1 : ★Measuring range(µm ): Ra: 0.05 ~ 15.0 Rz: 0.1 ~ 50 BulletPoint2 : ★Error:±15%;Variability: <12% BulletPoint3 : ★Real-time monitoring of lithium battery power and display, and to remind users to charge with charging progress indication BulletPoint4 : ★Charging and communication using the common USB interface. BulletPoint5 : ★Dot matrix liquid crystal display, interface prompt information rich. Color : Red IncludedComponents : MAIN HOST ItemName : VTSYIQI Portable Surface Roughness Meter Surftest Profilometer Surface Roughness Machine on Metal Non-Metal with Ra 0.05 to 15.0um Rz 0.1 to 50um USB Data Output ItemPackageDimensions_Height : 32 centimeters ItemPackageDimensions_Length : 35 centimeters ItemPackageDimensions_Width : 12 centimeters ItemTypeKeyword : surface-roughness-gauges Manufacturer : VTSYIQI202410090912VTSYIQI Material : plastic MeasurementAccuracy : HIGH ACCURACY ModelNumber : VTSYIQI202410090912VTSYIQI NumberOfItems : 1 NumberOfLithiumIonCells : 4 NumberOfLithiumMetalCells : 2 PartNumber : VTSYIQI202410090912VTSYIQI PowerSourceType : Battery Powered ProductDescription : Features: 1.Shape used to pull aluminum mold design, durable, anti-electromagnetic interference ability significantly, in line with the design of the new trend. 2.Using high-speed DSP processor for data processing and calculation, measurement and computation speed is greatly improved. 3.Liquid crystal display wide temperature using OLED color display, popular high brightness, no visual angle,, is suitable for various occasions. 4.The lithium ion rechargeable battery, can work for a long time, no memory effect, can while charging, charging time is short, long battery life. 5.Using a dedicated charger or computer USB port for charging, convenient and quick. 6.Automatic shutdown function and low power design of software and hardware of the instrument with long working hours, suitable for field use. Specifications: 1.Testing parameters(µm ):Ra、Rz 2.Stroke length(mm):6 3.Sample length(mm):0.25 ,0.80 ,2.50 4.Evaluation length(mm):1.25 ,4.0 5.Measuring range(µm ): Ra: 0.05 ~ 15.0 Rz: 0.1 ~ 50 6.Error:±15% 7.Variability: <12% 8.Transducer contacting pin round diameter and angle: 9.Contacting pin round diameter:10 µm±1 µm 10.Battery:3.7V Li 11.Size:106 mm×70 mm×24 mm 12.Weight:200g 13.Sensor needle static force and its rate of change: 14.Stylus static force: ≤ 0.016N 15.Force measuring rate of change: ≤ 800N/m 16.Working conditions: 17.Temperature: -20℃~40℃ 18.Relative humidity: < 90% 19.No shake and coercivity around