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 How do I change the open direction of my Alfred DB series lock? How do I add User PIN Codes? Is my Alfred DB series Smartlock waterproof? Can I keep my existing mechanical deadbolt installation with my Alfred DB series lock? How many scheduled PIN Codes can I create? Comments 0 comments Please sign in to leave a comment.