Even easier. You can still have the monitoring system online. Just don't put the fucking controls online. To be fair to the store owners though, the controls companies push hard "everything in one place" online portals for their equipment now a days. But, if you ask me, your monitoring system should be entirely separate from the control system. That adds a bit of redundancy in case of faulty sensors. I've seen it plenty of times before where a misplaced temp sensor for the control system will cause a case to run too warm or too cold without anyone knowing because they're only looking at the temp shown on the main controller. The temp sensor you're monitoring shouldn't be the same temp sensor that's controlling the system.