Just a brief note on a problem I had with the tag reader (SPR-S8EZ).
The bottom right Technical status light illuminated when trying to set the alarm via the tag reader and the system didn't arm. Everything reported normal via the tc20e.total-connect.eu page, but only by deleting the reader from the system, popping the batteries and adding it back resolved the problem.
The system has been installed for at least a couple of years and it's the only problem I've had.
Not sure if anyone else has encountered the problem but just thought I'd relate the tale in case it proved useful to someone else.