With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
entSensorThresholdIndex
Cisco Entity Sensor Threshold Index
1.3.6.1.4.1.9.9.91.1.2.1.1.1
An index that uniquely identifies an entry in the entSensorThresholdTable. This index permits the same sensor to have several different thresholds.
Back to CISCO-ENTITY-SENSOR-MIB MIB page.
IPHost Network monitor allows you to monitor entSensorThresholdIndex on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.