Automatic Temperature Scanning

I blogged last night about how automatic temperature reading of people several times a day might reduce the number of infectious people out in public

Temperature Scanners Everywhere  Is that post if you want to see the reasoning. 

How about we put a remote thermometer and displays on bathroom mirrors?

What would happen if you 

1. Attached Infrared thermometers (slightly reassembled) to the mirror

2. Put a switch on it that turned it on when someone stood in front of the mirror

3. Output the reading to a display on the mirror

There are several instructable here on how to make the handheld type of forehead thermometer at a distance https://www.instructables.com/id/Arduino-Laser-Infrared-Thermometer/ this is much the same mechanism but in a different container.

All these parts combined and mass produced would probably cost around 10 Euro. Private and Employee bathrooms might be best for privacy reasons. There is no network connection or face recognition involved here just a very simple temperature reading.