your source for geophysical instruments
A range of resistivity meters with varying power outputs and up to 20 simultaneous channels.
2-channels. 600V, 200W, 2.5A. For medium-depth exploration.
10-channels. 1000V, 250W, 2.5A. For deeper exploration.
20-channels. 1000V, 250W, 2.5A. For deeper exploration.