Shanghai Aidu Energy Science Co.ltd, China is the professional manufacturer of geophysical survey and geophysical prospecting, such as water detector, underground water detector, Resistivity meter, Resistivity system, resistivity imaging system, resisitivity imaging survey, IP system, Induced Polarization system, SP system, self-potential system, VLF system, IP and resistivity system, EM system, TEM system, NMR system, water finder, underground water finder, geophysical instrument, geophysical prospecting, geophysical exploration, mineral prospector, ore detector, metal ore detector, resistivity meter, resistivity survey, resistivity system, resistivity and IP system, resistivity imaging survey, resistivity imaging, DC resistivity meter, SP system, IP system, VLF system, NEF system, Induced polarization, IP, SP EM, TEM, TEM system, NMR system, magnetometer, proton magnetometer, magnetic meter, magentic ore detector, gold ore detector, iron ore detector etc.