Hook: Wall Medium (Blue Square)The Orbital Power Monitor decoration fits into a blue medium square wall hook.
Hook: Wall Large (Purple Rectangle)The Orbital Power Monitor decoration fits into a large purple rectangle wall hook.
How to Get an Orbital Power Monitor Decoration
Flashpoint decorations have a chance from dropping from a certain flashpoint. They are not a guaranteed drop, but have good chances of being looted from the final boss and a high chance from the bonus boss. Hardmode flashpoints have a higher chance of dropping a decoration than storymode flashpoints.
Approximately one decoration is dropped per hardmode flashpoint, and each flashpoint drops a different type of decoration. The Orbital Power Monitor decoration is dropped from the Kuat Drive Yards Flashpoint.