Zettler Digital Enrollment is an application used to program the Zettler range of fire alarm control units manufactured and sold by Johnson Controls, Inc. The application is capable of reading QR codes on Johnson Controls’ manufactured smoke detectors, ancillary modules, loop powered sounders & beacons and manual break glass call points. The QR code information is stored on the user’s smart device. The user can add a location label and other information to the scanned device information. The user can then upload the devices information into the Zettler range of addressable fire alarm control units via the configuration software.