Watchman requires connection to internet to send logs and enable alerts. Watchman is designed to connect with your existing WiFi and go online. This works for most deployments.
However, there are cases where there is no WiFi at the location for Watchman to connect with. Or, for some reason, the available WiFi can't be used for Watchman. The 4G-LTE-MODEM can be used for such use cases.
The cost of modem (including shipping) is $30. You may click the button below to make the purchase (you will scroll almost to the bottom on the "Buy" page to see the modem).