With IPHost Network Monitor you can run simple snmp requests against a Eaton device in your network.
upsmgConfigOutputNomFrequency
UPS Manager Config Output Nom Frequency
1.3.6.1.4.1.705.1.4.17
The nominal output frequency.
Back to MG-SNMP-UPS-MIB MIB page.
IPHost Network monitor allows you to monitor upsmgConfigOutputNomFrequency on Eaton device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Eaton UPSes right now.