ZZ-U128   Full-channel resistivity/IP system

 	
Full-channel  -- Capable of collecting up to 125 MN voltages for each AB current injection, with a data rate of 112k ABMN data per hour
 	
Support combining different acquisition arrays (e.g., Wenner+DPDP+... etc.) and collecting these arrays in a single run
 	
Suirable for 2D, 3D, 4D, crosshole, surface-borehole, towed marine, and site monitoring surveys
 	
Five options:  U128-MN, U128-32, U128-64, U128-96, U128-128.  Easy upgrade.

ZZ-U64  Full-channel resistivity/IP system

 	
Full-channel  -- it can collect 61 MN voltages for each AB current injection, and can collect 62k ABMN data/hour
 	
Combine different acquisition arrays together(such as, Wenner+Gradient+...) and collect these data in a single run
 	
Can collect any sorts of data, such as 2D, 3D, 4D, crosshole, surface-borehole, towed marine, site monitoring
 	
Auto electrode connection check, real-time full waveform I and V data monitoring