Check manual page of cisco_temp
Temperature sensors (by CISCO-ENVMON-MIB)
This check monitors the state of temperature sensors on older Cisco
devices using data from the CISCO-ENVMON-MIB. This checks is useful
for devices which do not provide the current temperature value and threshold
information. It thus does not collect performance data. Use cisco_temp_perf
if your devices provides such data.
Depending on the state of the sensor the checks can
be OK, WARN, CRIT or UNKNOWN.
The description of the sensor as provided by
One check for each sensor is created by the inventory, if the sensor is not in state 5 (not present).