WiFi vs Bluetooth

I’m new to Tempest. The System is using 3 communication schemes: WiFi, Bluetooth, and Long Range Wireless between the outside sensor module and the Hub. Can someone explain how and when each are being used?

bluetooth for communication between the app and the Hub. Needed for initial setup, but can be used any time to get the data from the hub.

Wifi is the normal mode of operation for the hub to communicate with the server. You’ll get your data in the app directly from the server.

Long range radio is only used between the hub and the sensors.