The reflective target markers RS193 for use with tachymeter and total station. The reflective marker can always be set up accurately on the measuring instrument and rotated through a radius of 360°. Thus the same survey point can be used from all directions. When using fixed point RSFP-X90, the targets can be removed and later replaced on the same survey point. If required the specially developed protective cap RSPC10 protects the reflective mark from fouling.