This object reports the state of temperature sensor 0 located on the Secondary MPM controller card, the standby counterpart to chasEnvrmnt1TempRange1. An admin should still monitor thermal health on the standby controller even though it isn't actively passing traffic, since a Secondary that's overheated when a failover occurs would immediately become an active-controller thermal problem. If this object flags an issue on the Secondary MPM while the Primary reads normally, an admin should investigate before relying on that Secondary for an upcoming planned failover.