Specification Brand : Aoleaby BulletPoint1 : The 2.4-inch color graphic LCD provides excellent readability and an intuitive display that is easy to use BulletPoint2 : The LCD also includesa backlight for improved visibility in dark environments. Charging is reduced approximately one quarter of the time compared with conventional models. BulletPoint3 : The Surftest SJ-210 is a user-friendly surface roughness measurement instrument designed as a handheld tool that can be carried with you and used on-site. BulletPoint4 : The detector supports a variety of measurement orientations and can perform measurements up against a wall surface or while facing upward. BulletPoint5 : When combined with optional accessories such as a height gage adapter, the detector can perform measurements in various orientations and settings. Color : One Color ExternallyAssignedProductIdentifier : 7619976009851 ItemName : Roughness Tester TMR120 ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : surface-roughness-gauges Manufacturer : Aoleaby MeasurementAccuracy : 1 ModelNumber : Aoleaby NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : Aoleaby ProductDescription : Features: Useing the high speed microprocessor DSP; Using the OLED screen,bright and without visual angle Data ourput USB port Large measuring range suitable for most materials Measures flat,outer cylinder and sloping surface Both Ra and Rz parameters in one instrument Works on 3.7V rechargeable lithium-battery, work while charging Real time battery indicator Technical Specifications: Roughness parameter Ra,Rz,Rq,Rt Tracing length 6mm Tracing speed 1.0mm/sec Cut-off lengths 0.25mm/0.8mm/2.5mm Evaluation length 1.25mm/4.0mm Measuring range Ra: 0.05-10.0m Rz: 0.1-50m Accuracy ±5% Repeatability <;12% Radius and angle of the stylus point Diamond,Radius : 10m±1m Angle: 90°(+5°or -10°) Power supply 3.7V Li-ion battery Recharging time 3 hours Operating temperature -20-40 Relative humidity <;90% Dimensions (L×W×H) 106×70×24mm Weight 200g