The dynamic probing rig LMSR-SPT-HK is a highly functional soil investigation machine, easy to transport due to the folding mast feature. It is versatilely suitable for working in confined spaces and is displaced in outdoor terrains by hand. It features a three-legged foot with crank legs for solid erection on site. The dynamic probing rig LMSR-SPT-HK can be used for soil-bearing capacity tests, compaction tests and for soil sampling. Dynamic probing standards DP-L, DP-M, DP-H, DP-SH as well as SPT can be carried out. Adaption for different drop weight masses is realized by removing or adding weight bodies at the drop weight mechanism. Drop height can be varied between 50 and 750 mm by means of an adaptor bracket. The integrated three-legged foot with crank legs allows for soil sampling at ease. The dynamic probing rig LMSR-SPT-HK is driven by a hydraulic motor fed by a separate hydraulic power pack. Displacement of drop weight carriage on the mast is hydraulically realized by the mast chain, a manual rope winch is not required. Furthermore the LMSR-SPT-HK version offers the vital advantage that the hydraulic power pack can serve a rod extraction unit as well.