I have a a couple newer Eaton 9PX UPS’s that have fewer health sensors. This is causing the UPS health to be reported as good when in fact it isn’t. In this case I have a 9PX indicating that it’s battery check failed but due to the missing health sensors librenms is not able to alert me.
So that sensor you are seeing is because this os has rfc1628 compatibility enabled which means it’s using some generic sensors. I’m guessing this model doesn’t actually support them.
We’d need a full snmpbulkwalk to see what’s available to us: snmpwalk -OUneb -v1 -c COMMUNITY HOSTNAME .