The concrete test hammer is an instrument used for the non destructive testing of concrete. It allows one to have a quick estimate of the strength of concrete. Since it simply gives an indication based on surface properties.
Ref. Std. : IS 13311 -1992 (Part 2) & ASTM C805, 05873
Models available :
Concrete Test Hammer (AIM 388 )
Concrete Test Hammer (Digital) (AIM 388-DG)