Testing of building foundation piles by cross-hole sonic logging.
·Inspection of concrete defects by ultrasonic method, such as uncompacted, cellular, hole area.
·Detecting defects of one hole by one trigger two receive.
·Testing dynamic performance of geotechnical investigation, rock, concrete, etc.

·High efficient testing. Lifting speed is more than 60m/s. (20 cm distance).
·Display the test data graphically. User can watch analyze result directly.
·Fast and precise Automatic judge the sound parameters. Real-time wave display to assure test efficiency.
·Humanized software design. Software design apply to User and construction plant. its help information ensure user handle easily.
·Linking the rebound apparatus directly. Detecting strength of concrete by ultrasonic-rebound combine method with linking rebound apparatus directly, and get strength of concrete in time. The functions apply for national patent.
·Being sensitive to receiving signal. Can receive signal more than 10m in concrete without defects.
·Can supply smooth power for radial energy transducer needless external power.
·Standard USB storage with big capacity.
·Interior lithium battery supply power for apparatus work more than 6 hours.
·Portable, small, light apparatus (1.75Kg).