We need your help!
At the front door of the library we have a small receiver box and a reflector that count the number of students who enter everyday. Sometimes the box or the reflector get bumped off alignment. When this happens, it can no longer count students.
Correct positioning of the receiver and the reflector:
Whenever you get up from the desk, please make sure the reflector has not been bumped and that both light are visible on the receiver box.