Specification BatteriesIncluded : 1 BatteriesRequired : 1 Brand : HFBTE BulletPoint1 : (1)Integrated wireless structure of the test hammer host and the displayer part. Easy to carry and make work efficient BulletPoint2 : (2)OLCD displayer, English interface and friendly operation. BulletPoint3 : (3)Using sensitive operation touch keys. The keys are not easy to aging. BulletPoint4 : (4)Large storage capacity, more than 200 standard components, a standard component including almost 50 test areas, one test areas including 16 test pointes, completely meet the request of long time in site test. BulletPoint5 : (5)Adopting non-contact reflection grating sensor, maximum avoid machine attrition and poor contact in traditional technologies such as contact way or potentiometer way, high precision, long service life, and the traditional pointer scale is kept. BulletPoint6 : ◆Easy to test on assembly line. BulletPoint7 : ◆It can be used for testing on site and testing large workpiece and can be used to make hardness measurements on positions difficult to access, such as tooth flanks or roots of gears. BulletPoint8 : ◆Only measuring the hardness condition of the surface contacted BulletPoint9 : ◆The development of microcontroller technology makes it easy to calibrate workpiece with different elastic constants. Color : See the Picture ContainsBatteryOrCell : battery IncludedComponents : no ItemName : HFBTE Digital Rebound Test Hammer Concrete Test Hammer Rebound Hammer Resiliometer with USB Communication Port 200 Data Storage for Quick And Easy Determination Hardness Of Construction Materials ItemPackageDimensions_Height : 8 centimeters ItemPackageDimensions_Length : 30 centimeters ItemPackageDimensions_Width : 22 centimeters ItemTypeKeyword : hardness-testing-apparatus Manufacturer : HFBTE Material : Plastic ModelName : 2024112817dara ModelNumber : 2024112817dara NumberOfItems : 1 NumberOfLithiumIonCells : 1 PartNumber : 2024112817dara PowerSourceType : Battery Powered ProductDescription : Introduction: ▲Digital Test Hammers for the quick and easy determination of the strength of concrete, and hardness of construction materials. Digital functions allow faster and greater number of test, leading to better quality tests. It’s a good and useful instrument for quality control and inspection organizations. ▲Submit to Technical Specification of Inspecting Concrete Compressive Strength by Rebound Method > (JGJ/T23-2011). And ASTM C805, EN 12504 Features: ▲Integrated structure of the test hammer host and the displayer part. Easy to carry and make work efficient. ▲Automatic recording function improves the efficiency of measurement. ▲The instrument is powered by a built-in rechargeable lithium battery, which can operate continuously for more than 10 hours ▲Testing parameters can be typed in test site. ▲Adopting USB interface, as U flash disk, no need special driver. ▲Have real-time clock calendar function, can automatically record test date. Technical Specifications ▲Data processing standard: Submit to Technical Specification of Inspecting Concrete Compressive Strength by Rebound Method > (JGJ/T23-2011). ▲Standard impact energy: 2.207J ▲Tension spring stiffness: 785 N/m ▲Stroke of impact hammer: 75 mm ▲Test value when calibrated on test anvil (qualified anvil like type JW225): 80 ± 2 ▲Bounds on error: ≤± 0.5 (the differences between displayer and rider) ▲Display screen: 128 x 64 resolution, 3 levels of backlighting adjustable. ▲Data storage capacity: 200 standard components (50 testing areas per component) ▲Power consumption: The biggest backlight≈200mA ▲Sleeping current: 0.8mA ▲Communication port with PC: USB2.0 ▲N.W: ≈1.1 Kg ▲Standard Accessories: test hammer,USB communication cable, Manual, Software disc, Carrying case,Charger 5v 1A