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