The ornamental design for the laser based positioning sensor, as shown and described.
FIG. 1 is a front perspective view of the laser based positioning sensor;
FIG. 2 is a front elevation view of the laser based positioning sensor of FIG. 1;
FIG. 3 is a left side elevation view of the laser based positioning sensor of FIG. 1, relative to the view of FIG. 2;
FIG. 4 is a right side elevation view of the laser based positioning sensor of FIG. 1, relative to the view of FIG. 2;
FIG. 5 is a rear end elevation view of the laser based positioning sensor of FIG. 1;
FIG. 6 is a top view of the laser based positioning sensor of FIG. 1; and,
FIG. 7 is a bottom view of the laser based positioning sensor of FIG. 1.
The broken line showing of structural features is included for the purpose of illustrating non-claimed subject matter and forms no part of the claimed design.