Concrete rebound hammer tester

VTSYIQI Digital Concrete Test Hammer Concrete Compressive Strength Testing Machine with Tension Spring Stiffness 785 N/m Stroke of Impact Hammer 75 mm Bounds on Error ≤± 0.5 Real-time Clock Calendar Function Automatic Recording Function

VTSYIQI Digital Rebound Concrete Test Hammer Concrete Rebound Hammer Digital Resiliometer with Stroke of Impact Hammer 75mm Tension Spring Stiffness 785N/m Real-time Clock Calendar Function 200 Data Storage

VTSYIQI Digital Display Concrete Rebound Hammer Tester Resiliometer Concrete Tester with Rebound Hammer Range 10-70MPa OLCD Display NDT Testing Equipment Real-Time Clock Calendar Function

VTSYIQI Digital Concrete Rebound Test Hammer Resiliometer Tester Concrete Rebound Hammer with Rebound Hammer Range 10-70MPa NDT Concrete Compressive Strength Testing Machine

VTSYIQI Digital Concrete Rebound Test Hammer Concrete Compressive Strength Testing Machine with USB Communication Port 200 Data Storage Tension Spring Stiffness 785 N/m Stroke of Impact Hammer 75 mm

VTSYIQI Concrete Test Hammer Resiliometer Digital Rebound Test Hammer Concrete Hammer Tester with Standard Impact Energy 2.207J Stroke Of Impact Hammer 75mm Tension Spring Stiffness 785 N/m 200 Standard Components