Geophysical Equipment, Underground Water Detector, Well Logging manufacturer / supplier in China, offering Geophysical Resistivity Meters for Groundwater Location Geohydrological Electrical Tomography System for Well Location Before Drilling, Portable Proton Magnetometer for Mineral Deposit Investigation in Mining Area, GPS Wireless Sensor 3c Seismic Node 5Hz Geophone Three-Component Seismograph and so on.