How about you just set up a small web server on your PI and have a basic API for the page to retrieve the sensor information
Then on whatever computer you want, you could simply open 6 browser windows, one on each monitor, and have the pages display the sensor information.
Your API can be something simple like
GET yourdomain.com/sensors/1 (you can use a direct IP instead of a domain, but then you'd have to edit the html pages you serve to the browser to contain the actual IP given to your controller by the router in the house/building/etc.
and your web server replies with a json result or a text line where the entries are separated by tabs or some special character
The response would be basically an array with the last 10+ or however many entries you want. Each entry can be a pair of time : value
Javascript on the page unpacks the array and updates the info on the screen, if a new entry is detected, then goes to sleep and a few seconds later, sends another request to get new measurements.... repeat...