TRIPP LITE ENVIROSENSE Monitors Temperature, Humidity and Contact-closure Inputs - Requires SNMPWEBCARD or switched PDU - Retail Features: Tripp Lite's ENVIROSENSE module (when used with Tripp Lite Internal or External SNMP/Web Cards) provides remote temperature/humidity monitoring and a dry contact interface to control and monitor alarm, security and telecom devices. Connects to Tripp Lite Internal or External SNMP/Web Cards Allows remote temperature/humidity monitoring in network environments Provides monitoring and control of alarm, security and telecom devices through a dry-contact interface