Following on from Sunncamps rather patronising, and frankly useless, response to my email I have sent them the below.
Watch this space!
Thank you but you haven't really answered my question as to what, if any, "leeway" there is in the recommended 7 psi inflation pressure.
In addition please can you explain how I can effectively, and constantly, "monitor" the pressure within the tubes? The supplied pump has a pressure guage, but that only shows pressure within the pump. There is a non return valve within the inflation points and that prevents the guage being able to display the pressure present within the tube.
As there is a pressure relief valve within the pump why do you not fit a similar item to one inflation point? Why not offer one as an optional extra, or even better a pressure guage that would allow an owner to see at a glance what their beam pressure is. I would certainly buy one.
In addition how exactly do you propose, as you have rather glibly suggested, I "monitor the pressure" when I have left my caravan and awning and am having a "day out" when what was a dull overcast day becomes one with blazing sunshine which will greatly increase the pressure within the air beams.