With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ons15501DevAmbTemp
ons15501 Dev Amb Temp
1.3.6.1.4.1.1869.11.11.2.14
The ambient temperature for the device.
Back to ONS15501-MIB MIB page.
IPHost Network monitor allows you to monitor ons15501DevAmbTemp 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.