Here are a few tips to minimize setting off the security gates’ alarm. Material removed from reserve must always be checked out and desensitized even if you are just taking the material to another area within the library. Use the self-check machine or take materials to the circulation desk. To avoid activating the alarm as you leave the library, make sure that your books are properly checked out and desensitized. If the alarm sounds, please return to the circulation desk. Various items may set off the alarm, including textbooks purchased at the bookstore, inventory tags, and other electronic sensing devices; circulation staff may be able to help you identify the source.