Is it feasible to route sensor traffic over the network to a single sensorProbe unit so that I can get a view of all the sites status?

No. Only the securityProbe 5e is able to read information from remote sensorProbes using the Virtual Probe feature. If you wanted to merge information from a number of different sensorProbe2s, you would need to either use a 3rd party SNMP based network monitoring application or AKCP's own management software. Something like Intellipool Network Monitor at will do this for you.