The ornamental design for a slidingpanelssecuritydevice, as shown and described.
FIG. 1 is a top, front, and left side perspective view of a sliding panels
security device showing my new design, the broken-line disclosure of a
portion of a set of sliding panels being for illustrative purposes only
and forming no part of the claimed design;
FIG. 2 is an enlarged top plan view thereof, the bottom being identical in
appearance; and,
FIG. 3 is an enlarged left side elevational view thereof, the right side
being a mirror image of that shown.