PCE-HT 225E is a hardness test hammer, also called a concrete rebound hammer or Swiss hammer, used for non-destructive measurements of surface hardness and compression strength. Suitable for use with concrete, rock and building materials, this rebound hammer features a direct digital display, voice functionality, USB port data interface and memory for storing up 200 measurement values. - Test range: 10 … 60 MPa or 100 … 600 kg/cm / 1450.38 … 8702.26 psi - Impact energy: 2.207 J or N-m / 0.225 kgf.m / 1.6278 ft-lb or Type N - Impact stroke: 75 0.3 mm / 2.95 0.012 in - Radius of spherical tip: 25 1 mm / 0.99 0.04 in - Data processing software included