What a great product for any business that would like the ability to immediately lock or unlock a door with an electronic deadbolt.  Ideal for laudromats, lobby doors, or any other unattended areas.  For example, you could have doors that automatically lock and people inside the building can exit using a lighted push button switch.  You could also wire these into smoke detectors, alarm systems, fire alarm systems, etc. to automatically unlock or lock the doors in needed areas.