PCE-HT-225A is a heavy-duty concrete hardness tester or concrete test hammer, also called a concrete rebound hammer or Swiss hammer, used to measure surface hardness and material compression strength. Suitable for use with concrete, rock and building materials, this rugged, manufacturer-calibrated rebound hammer is both easy to use and built to last.

• Test range: 10 … 60 MPa or 100 … 600 kg/cm² (1450 … 8702 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
• kg/cm², psi, and MPa conversion tables 
• Optional test anvil to verify accuracy listed under accessories 

The material tester is designed for fast and precise color measurements of surfaces. The color ranges CIE-LAB, CIE-LCh, HunterLab, CIE-Luv, XYZ, RGB of the color can be determined with the material tester.

• Measuring aperture: Ø8 mm / 0.31"
• Wavelength interval: 10 mm / 0.39"
• Wavelength: 400 … 700 nm
• Battery life for approx. 10,000 measurements
• Bluetooth interface
• Requiresfree app for Android only in Playstore (PCE-XXM 30) to use all features
• Various adjustable light sources