What is PIN Visual Protection? Blair April 10, 2019 19:53 Updated In order to visually protect your PIN Code, you can enter any random digits both before and after you enter your PIN Code. Related articles Is my Alfred DB series Smartlock waterproof? What weather conditions / environments are optimal for Alfred? How do I restore my Alfred DB series to factory settings? Where can I order replacements for lost parts? What kind of key blank should I use if I need more keys? Comments 0 comments Please sign in to leave a comment.