CODELOCKS 510 Mechanical Digital Locks Marine 500 series Tubular Mortice Latch Black Marine Grade

The CL500 range of mechanical locks offer a variety of options.
Allows the user flexibility on how to manage entry – by key, code
or code free access. Throwing the deadbolt on the mortice lock
models will lock out code users when appropriate. A safety feature
ensures that the inside lever handle will retract the deadbolt so as
to avoid accidentally locking a person inside the room. Front and
back plates can be purchased for use with existing locks.