Mortise deadbolts are most often found in older homes. The key characteristic of a Mortise lock is a long strip of metal plating running down the edge of the door. In the middle of this plating is the deadbolt or locking mechanism. The August Smart Lock is not compatible with these systems.
Satin Nickel Serenade Mortise Set-VMT115SN at The Home Depot
Wright Products VMT115PB Accents Serenade Mortise Lockset, Polished Brass by Wright Products. $26.84. Amazon.com A direct replacement hardware for most mortise style storm door locks, this Accents Serenade lockset is crafted solid brass inside and out. An elegant lever continually curves for a striking affect that matches both traditional and contemporary décor and architecture. The lever runs flush into the shank, which runs flush into a low profile, n...