With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cefcFRUPowerOperStatus
Cisco Entity Field Replaceable Unit Control FRU Power Operation Status
1.3.6.1.4.1.9.9.117.1.1.2.1.2
Operational FRU power state.
Back to CISCO-ENTITY-FRU-CONTROL-MIB MIB page.
IPHost Network monitor allows you to monitor cefcFRUPowerOperStatus on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.