CAST currently uses the four geophysical instruments listed below. These instruments have proven to be highly effective at a wide range of archaeological sites. Recent projects where the instruments have been used include work at Tiwanaku in Bolivia as well as Tell Qarqur and Umm el Mara in Syria. Examples of recent results from the instruments are provided at the pages linked below.
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| Ground-penetrating Radar (GPR): GSSI SIR-3000 |
Magnetic Gradiometer: Bartington Grad601-2 |
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| Resistivity Meter: AGI STING R1 Earth Resistivity Meter |
Conductivity Meter: Geonics EM38-MK2 |
CAST is also planning to acquire a second resistivity meter designed for rapid, single-depth measurements over large areas.