Concrete Rebound Hammer Tester Concrete Rebound Hammer Tester Concrete Rebound Hammer Tester Concrete Rebound Hammer Tester Concrete Rebound Hammer Tester Concrete Rebound Hammer Tester Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews — — — 5.0 out of 5 stars 1 — — Price $154.00$154.00 $525.00$525.00 $640.00$640.00 $580.00$580.00 $950.00$950.00 $1,128.00$1,128.00 Large size no data no data no data no data no data ✓ Voice counting ✓ no data no data no data no data ✓ Printer no data no data no data no data no data ✓ Bluetooth no data no data no data no data no data ✓ LCD display ✓ no data no data no data no data ✓ True color LCD display screen no data no data no data no data no data ✓ Difference Simple structure and convenient carrying. Length of pointer: 20.0±0.2(mm) Friction of pointer: 0.65±0.15(N) The pointer is easy to adjust friction. The button applies stretching technics and is not easy to fall off Nominal kinetic energy: 2.207J Stiffness of spring: 785 ± 30.0N/m Pointer length: 20.0 ± 0.2mm Pointer friction: 0.65 ± 0.15N Spherical radius of impact rod: R25 ± 1.0mm Test range: 10-60MPa Integrated structure design, the rebound instrument host and rebound sensor combination, without any connection line, easy to carry. Using OLED display, 128X64 resolution USB communication port, and virtual U disk mode Data processing standard: Submit to (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 Advanced integrated design, small size, easy to operate. High definition OLED display screen Working temperature: ﹣40º～60ºC Measuring range: 10-70N/mm Automatic correction of impact direction Measuring ranges: 10-60MPa Impact energy: 2.207J Spring constant: 785N/m Spring extension: 75±0.3mm The average rebound values on steel anvil: 80±2 Description: The meter is in accordance with technical regulation of JGJ/T23-2001, used for testing of concrete compressive strength within the scope of 10-60Mpa, with the system standard energy of 2.207J, and value indicating system of pointer direct reading. Our concrete resiliometer has been approved as "Recommended Product for Engineering Construction" by the Ministry of Construction. Shanxi Institute of Building Research, who composed "Testing Concrete Compressive Strength Technical Regulation of JGJ/T23-2001 with Springback Method", supervises the manufacturing process. Characteristics: Light (saving 2/3 forces compared with counterpart products), flexible, inexpensive, power-free, easy to master; the button applies stretching technics and is not easy to fall off; the pointer is easy to adjust friction. Therefore, it is the first choice applicable for on-the-spot NDT. Main Technical Parameter: * Length of pointer: 20.0±0.2(mm) * Friction of pointer: 0.65±0.15(N) * Sphere semidiameter at the end of the flip rod: 25±1.0(mm) * Rigidity of flip tensioned spring: 785.0±40.0(N/m) * Location of flip hammer's hook release: "100" at the scale mark * Work length of flip tensioned spring: 61.5.0±0.3(mm) * Strike length of flip hammer: 75±0.3 * Hop location of the flip hammer: "0" at the graduated scale * Fixed value of steel anvil: 80±2 (our products are controlled between 80-81) *Standard Accessories: A resiliometer, Grindstone, Flip tension spring, Buffer spring, Screwdriver, Instruction