With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciscoEnvMonTemperatureStatusValue
cisco Environmental Monitor Temperature Status Value
1.3.6.1.4.1.9.9.13.1.3.1.3
The current measurement of the testpoint being instrumented.
Back to CISCO-ENVMON-MIB MIB page.
IPHost Network monitor allows you to monitor ciscoEnvMonTemperatureStatusValue on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.