The perfect lock if you want to be able to disable the keypad temporarily!
The 2130 Surface Mount Night Latch

The M213 Security Nite Latch is a one-of-a-kind keypad lock with a unique feature: you can set the slider switch on the inside so that no one can enter, even if they know the code.

This is handy if you have given your code to a neighbor, for example, in case of an emergency, and you don't want them to be able to open the lock at night, while you are sleeping. (see Locking and Unlocking below for details.)

This lock fits any standard door 1-3/8" to 2" thick. However, it is surface-mounted, so it will also work on thin doors where a hole for a deadbolt cannot be drilled into the edge of the door because it is too thin.

The strike is also surface-mounted, so it does not require a hole to be chiseled into the door frame. It is simply screwed onto the frame, not mortised into it.

There are two important things to note about this lock before you order: