Secure mounting of lasers or theodolites on modular frames. The holder with a flexible guide rail allows for quick positioning and precise alignment of the measuring device over a reference point, for example, when transferring axes on the construction site. It is rotatable 360° and adjustable in height by 7 cm.

Variable application options include:
1. Central positioning of the measuring device on the modular frame holder.
2. Eccentric positioning using the rotating plate and the guide rail.

The removable rotating plate enables quick and easy attachment of the measuring device. The robust design consists of a holder, a rotating plate, and a metal guide rail. The modular frame holder is securely attached to modular frames with a material thickness of up to 8.3 cm using four screws. It includes a 5/8" threaded screw as a standard attachment for rotating lasers, line lasers, and theodolites.