Electric method to find water is still the most economical, effective and widely used method in various water searching methods. It is widely used at home and abroad to find various types of groundwater such as bedrock water, fissure water and karst water. It is also used for metal and non-metal mineral resources exploration, urban geophysical exploration, railway bridge exploration, etc., to determine the location of reservoir dam foundation and flood control levee. In hydrology and engineering geological exploration, it can also be used for geothermal exploration. Main features and functions of the instrument Integrate transmission and reception, light and flexible, and high measurement accuracy.