Electric Log

The classic water-well combination probe combining shallow, medium and deep penetrating resistivity measurements with Self-Potential (SP).

Induced Polarisation

The Induced Polarisation probe measures the charge separation or ‘chargeability’ in porous, water-saturated, mineralised rocks caused by the passage of a low-frequency alternating current.

Focussed Electric (Guardlog)

The focussed resistivity (LL3) measurement provides excellent vertical resolution and a reasonable depth of investigation.

Magnetic Susceptibility

The Magnetic Susceptibility probe is based on the industry-standard Bartington Instruments™ product.


The Microresistivity probe provides a focussed pad resistivity measurement with high vertical resolution combined with a caliper and natural gamma.


Click on the thumbnail image below to see the Slimhole Probe Catalogue.

Slimhole Probe