Concrete rebound hammer tester

VTSYIQI Digital Concrete Rebound Tester Hammer Concrete Strength Tester Equipment with 2.207J Nominal Kinetic Energy Test Range 10-60MPa USB Communication 3.7V Lithium Ion Battery

VTSYIQI Digital Concrete Rebound Test Hammer Resiliometer Concrete Tester NDT Concrete Strength Hardness Tester with Test Range 10-60MPa Stiffness of Spring 785±30.0N/m 999 Standard Storage

VTSYIQI Portable Concrete Rebound Hammer Tester Concrete Test Hammer with Pointer Length 20.0 ± 0.2mm USB Communication Port 999 Data Storage

VTSYIQI Digital Concrete Rebound Hammer Concrete Strength Hammer with Test Range 10-60MPa Stiffness of Spring 785±30.0N/m Built in Large Capacity Memory Pointer Length 20.0±0.2mm Spherical Radius Of Impact Rod R25±1.0mm

VTSYIQI Handheld Concrete Test Hammer Rebound Hammer Tester with Stiffness of Spring 785±30.0N/m Test Range 10-60MPa Real-time Measurement Point Strength Estimation 999 Standard Components Nominal Kinetic Energy 2.207J

VTSYIQI Concrete Rebound Test Hammer Digital Concrete Test Hammer with Stiffness of Spring 785±30.0N/m Test Range 10-60MPa Support Voice Counting Support Break-Point Continuous Test for Measuring Steel Structures