Soil liquefaction is a major concern for the design of geotechnical structures that involve sand or sandy soils. A steadily increasing number of case histories has been collected over the years, allowing the improvement of technical procedures adopted to detect liquefiable soils. Because of its repeatability, reliability and continuous data profiles, Cone Penetration Test (CPT) is one of the most widely used in-situ tests to evaluate the potential for soil liquefaction. The development of CPT-based liquefaction triggering procedures has progressed over the last decades and extensive studies have been conducted to provide empirical correlations between cone tip resistance data and soil properties.A new CPT prototype has been developed by the French company EQUATERRE and it aims to probe liquefiable soils by using a cyclic cone penetration instead of the monotonic penetration executed by standard CPT devices.