The dynamic probing rig LMSR-EK 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. At the borehole location the mast is vertically positioned by means of two screw spindles. A square length of wood for the mast foot and two underlay planks for the wheels ensure a stable setup and are part of the delivery scope. The dynamic probing rig LMSR-EK can be used for soil-bearing capacity tests, compaction tests and for soil sampling. Dynamic probing standards DP-L, DP-M and DP-H can be accomplished. The dynamic probing rig LMSR-EK 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. Adaption for different drop weight masses is realized by removing or adding one or two 20 kg weight bodies at the drop weight mechanism. An optional three-legged foot with crank legs allows for soil sampling at ease. The dynamic probing rig LMSR-EK is driven by an electric motor and thus allows for indoor use. The drop weight carriage is lifted and lowered on the mast with an integrated rope winch.