A similar post is being discussed in the Member to Member forum about how to organise temperature checking.

There will be an HR aspect - what happens if an employee has an elevated temperature and you turn them away from work - will/should they be paid? With more cycling and walking during warming weather to avoid public transport it may be you also need to allow a cool down period - if this is related to a work test I would suggest this must be paid particularly if your organisation only just pays minimum working wage. 

Your policy should be made clear to all those who may wish to attend site as visitor/contractor/delivery driver so that unecessary journeys do not get made (I note you make no reference to these potential carriers).

Are those conducting checks qualified to determine the results or are you merely going to apply an arbitrary threshold value?

Is temperature checking alone an effective control? Another post refers to those who appear normal but are carriers of the virus and a simple temperature check is unlikely to identify these individuals. As they do not have a new and persistent cough you could be unwittingly letting a tranmitter on site and the first you will know despite this test is when those in the premises start collapsing like dominos some five to ten days later.

Data against a named individual should not be freely available on site - what if someone incorrectly records a reading? what if their collegues read this and jump to incorrect conclusion?

I have just answered a similar post on the member to member forum. All I can see is issues. If you are going to do this you will need a very robust policy or it will degenerate into biosafety theatre (that phrase will catch on. I promise)

What exactly do you bosses want you and your staff to do?

Recording the temperature readings sounds very dodgy and I think would constitute an invasion of privacy. That information should only be shared by people who need to know. What if someone has a pre-existing condition that means that they have a higher than normal body temperature. They should not be expected to share that information will all and sundry.

Do they need the monitors need calibrating- they will need to be accurate to within a few degrees? The normal human body temperature range is typically stated as 36.5–37.5 °C (97.7–99.5 °F) Human body temperature varies. It depends on sex, age, time of day, exertion level, health status (including illness and menstruation), what part of the body the measurement is taken at, state of consciousness (waking, sleeping, sedated), and emotions. Unless the people taking the temperature know the person’s medical history they cannot really decide if they have an abnormally high temperature.

I have had a couple of sales emails trying to sell me auto detection cameras that will scan people as they enter the building. Needless to say very expensive - and im not convinced that they are that reliable due to the factors that could influenec body temperatures. Now if anyones got one of those gadgits that Bones used to use on Star Trek that actualy work i will take a couple!