Product type	Where to look
Smart Home & Security	Check the back of the device or under the mounting plate. For many brands the app shows the exact model under device settings, which is handy once it is mounted.

Getting the official First Alert manual

First Alert publishes product documentation on firstalert.com. Search there with the full model number from the label, then look for a documents, manuals or downloads section on the product page.

If your model isn't listed, try removing the last few characters, which usually only indicate color or region. For discontinued models, look for an archive or legacy products section, or contact First Alert support directly.