(EG4xxx) How do I interpret the status toolbar on the LCD?
The status toolbar at the top of the LCD display provides a quick overview of device status. When navigating the LCD menus this information is usually available, although a few menus won't display the status toolbar. The page numbers in the top right corner are only displayed when multiple menu pages are available. For a full overview of the LCD display functionality on the EG4xxx, see our LCD Tutorial.
Aside from the page number, there are three primary pieces of information which are always displayed, as described below:
Heartbeat indicator
Alternates between full 
Connection type
Shows the communication technology in use. There are four possible connection types:
If the Connection Type icon is flashing on and off, it indicates the eGauge meter is connected to the proxy server and accessible remotely on the internet via it's proxy URL. If solid, it indicates the eGauge is unable to connect to the proxy server and will not be accessible remotely via the proxy URL.
Link quality
A bar indicating connection strength. A single dot indicates 0% signal. The taller the bar, the stronger the signal.
Note that this value updates every couple of seconds, so it may lag behind the actual connection strength.
The full LCD manual may be found here.