With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciscoEnvMonVoltageThresholdHigh
cisco Environmental Monitor Voltage Threshold High
1.3.6.1.4.1.9.9.13.1.2.1.5
The highest value that the associated instance of the object ciscoEnvMonVoltageStatusValue may obtain before an emergency shutdown of the managed device is initiated.
Back to CISCO-ENVMON-MIB MIB page.
IPHost Network monitor allows you to monitor ciscoEnvMonVoltageThresholdHigh on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.