Geophysical Equipment, Underground Water Detector, Well Logging manufacturer / supplier in China, offering Strong Motion Accelerometer with Force Balance Sensor Building Earthquake Monitoring Structural Health Monitoring Ground Vibration Monitoring Accelerograph, Digital Real Time Borehole Drliing Angle Calibration Downhole Divieation Inclinometer, Seismic Data Loggers Em Coils Damping Resistors GPS Synchronization Controllers and so on.