electronic pressure sensor to link to solar controller eg resol / navitron?

[GavinA]

as the thread title suggests, I'm hoping someone might be able to point me in the direction of an electronic pressure sensor capable of linking up with a resol, or possibly navitron solar water heating controller.

I'm looking at using some form of remote access to be able to log onto and control customers systems remotely eg to reset them, adjust the settings, or possibly to carry out basic emergency fill / drain operations to clear airlocks etc in the event of a fault, but this isn't going to work very well without being able to see what the pressure gauge is doing. I guess I could be asking the customer to monitor the pressure gauge for me, and tell me what it's reading over the phone, but it'd be way better if I could access all the information I needed remotely via the controller, plus the obvious risks of customers reading the wrong dial etc.

If anyone knows of such a piece of kit, or has an idea for a bodge to get the same effect, I'd love to hear any ideas as I'm currently a bit stumped.

[Mostie]

http://www.electrocontrols.co.uk/datasheets/T06.pdf