You can configure the Mercury by connecting to its internal WiFi access point and web server.
You can use this method if you don't have internet available or just find it quick and easy when in the field.
All the settings are the same as described in the Altimeter Cloud section, so you can read about the settings and what they do using this page.
To access the internal web server, connect to the Mercury's WiFi and visit the page http://192.168.0.1
Note: The Mercury does not permit an empty password (open WiFi) and utilizes WiFi's default encryption. Therefore, when you connect to its network, if you cannot find or remember your AP password, you can set a new one using the USB WiFi configuration tool on the Altimeter Cloud.