WDDS-2 is the basic resistivity meter only with function of 1D Res Sounding. WDDS-2B designed with a internal high power on the basis of WDDS-2, up to 200V.

• 1D Resistivity vertical electrical sounding

• Underground water inspection
• Engineering geology inspecting as dam base exploration and flood
• Metal source exploration
• Non-metal source exploration
• City geophysical exploration
• Railway and bridge

• RS-232 serial interface enables the instrument to communicate with other computers.
• Monitoring the dynamic variation of MN electrode potential through inspecting its ground resistance.
• Receiver supports transient over-voltage protection for input voltage; transmitter supports over-voltage protection, over-current protection and AB open-circuit protection.
• Automatically displaying the resistivity relative error between the current measuring result and the last measuring result.
• Able to store measuring data for more than 150,000 times, including voltage, current, resistivity, relative error, SP, array constant, measuring point and so on.