SYF71 Crack depth and width tester

Purpose SYF71 crack width and depth tester is used to test the crack depth and width. It is one professional crack measurement in one comprehensive test instrument, mainly used for crack detection of bridges, tunnels, walls, concrete pavement, metal surface. Specification The People's Republic of China Housing Security accreditation standards --- GJ125-99 Technical specification for inspection of concrete defects by ultrasonic method (CECS 21:2000) Performance/Functions 1.