Poseidon2 4002 measures temperature, checks if the lights are on or the doors are open in the server room, and more. Poseidon is SNMP compatible, includes a data logger, e-mail and SMS alerts. It can be connected to the SensDesk online portal or cloud sensor systems.
http://hw-group.us/device/poseidon2-4002
Poseidon2 4002: Data center environment monitoring
Poseidon2 4002 is a system for remote monitoring of rack environmental conditions (occupies 1U).