Can I keep my existing mechanical deadbolt installation with my Alfred DB series lock? Blair April 10, 2019 19:41 No, regular mechanical deadbolts are not compatible with the DB series. Related articles What kind of key blank should I use if I need more keys? How to Contact Alfred's Solutions Desk What should I do if I forget my Master PIN Code? How many users can receive a Bluetooth™ key? What is the DB series' battery life? Comments 0 comments Please sign in to leave a comment.