Where it goes
Six places a small screen does the job.
Each page says what to install, what size to start with, and what to watch for. Powered from low-voltage DC or the AC adapter, updated from a card, and nothing to log into.

Elevator screens
A steel box on a cable is one of the worst places for an internet connection. These screens do not need one.
Start with the 15.6 in, portrait

Digital menu boards
Change the menu with a card and a coffee break. Service does not stop when the internet does.
Start with the 23.8 in, portrait

Lobby displays
A screen in a reception wall should look like part of the wall. A published cut-out size makes that a drawing, not a guess.
Start with the 21.5 in, portrait

Retail displays
The sign should sell the thing next to it. Small screens at the shelf do that, and they do not need the store Wi-Fi.
Start with the 18.5 in, landscape

Factory screens
Shift notices, safety counters and line status, on a screen rated -10 to 60 °C operating, 95% non-condensing.
Start with the 23.8 in, landscape

Waiting room screens
Check-in reminders, health notices and what to expect today. No patient data, no network, no monthly bill.
Start with the 21.5 in, landscape