With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cefcFanTrayOperStatus
Cisco Entity Field Replaceable Unit Control Fan Tray Operation Status
1.3.6.1.4.1.9.9.117.1.4.1.1.1
The operational state of the fan or fan tray. unknown(1) - unknown. up(2) - powered on. down(3) - powered down. warning(4) - partial failure, needs replacement as soon as possible.
Back to CISCO-ENTITY-FRU-CONTROL-MIB MIB page.
IPHost Network monitor allows you to monitor cefcFanTrayOperStatus on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.