There are many ways to monitor your UPS, but it’s critical you choose one, and then use the system.
Back in the day, a remote status panel was the typical means to monitor status and alarms. It was located in a Guard Shack or NOC, and a light and horn alerted someone to trouble. Today, communications cards are the norm and can alert users to trouble via email and SMS text’s, using the Web, SNMP, Modbus and a variety of protocols to match any requirement.
There is also the option of using dry relay contacts in the UPS that monitor critical status (Ie: Online/On bypass, On Battery, Summary Alarms) to interface to building automation systems or other web based monitoring systems like Sensaphone or Falcon.
There are many choices, but the important take away is choose one, verify it works, and use it. If you don’t, some day your critical load will go down and you’ll find out it was because your UPS was in bypass for a week and you never knew it, that is, until your scheduled generator test on Monday morning sent a huge reminder when the transfer switch activated.