The integrated structure design integrates the hammer hammer host and the hammer hammer sensor into, free of connecting wires, easy to carry, and low failure rate. It adopts a true-color LCD display with a resolution of 176×220 and a full Chinese interface for easy operation. The rebound value voice prompt function, no need to watch the screen to know the rebound value, and the detection efficiency of the inspector. The rebound hammer sensor adopts a non-contact metal reflection grating sensor, adopts the potentiometer method or other contact sampling methods that are prone to mechanical wear and other defects, and has high precision, while retaining the mechanical pointer scale. An external wireless portable printer can be connected to generate a test report on site., Manufacturer: DIGNIFE