... ,N & L model 2,Concrete Test Hammer 3,safety operation 4,Reading the test result from the scal Schmidt Hammer AL-150 ... TESTER AL-150R Product Information :Rebound Tester also called Concrete Test Hammer,Elasticity Tester.1. Normal impact energy: 2.207J2. Use ... with a thickness from 50 to 100mm) Technical data: Concrete Test HammerModel N Model LImpact energy 2,207Nm0,735NmMeasuring range10 to ...