With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciscoEnvMonFanStatusDescr
cisco Environmental Monitor Fan Status description
1.3.6.1.4.1.9.9.13.1.4.1.2
Textual description of the fan being instrumented. This description is a short textual label, suitable as a human-sensible identification for the rest of the information in the entry.
Back to CISCO-ENVMON-MIB MIB page.
IPHost Network monitor allows you to monitor ciscoEnvMonFanStatusDescr 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.