The E2MTHDI E2 Environmental Sensor Module works with Tripp Lite LX Platform devices, including WEBCARDLX, WEBCARDLXS, PDU3XE-Series PDUs and PDU3E-Series PDUs. By connecting the included USB cable to an LX Platform device, the E2MTHDI allows you to remotely monitor ambient temperature and humidity conditions in network environments. It also monitors, via dry contact interface, contact closure status of two compatible products, such as smoke detectors, fire alarms and security systems. If temperature or humidity values exceed a certain limit or monitored contacts change state, it is recorded in the event log of the LX Platform device's PowerAlert® Device Manager interface. The E2MTHDI mounts magnetically to most racks and cabinets. Up to three E2 modules can be daisy-chained together. A built-in retention harness secures cable connections to reduce clutter. Up to 3 E2 modules can be daisy-chained together Built-in cable harness reduces clutter USB cable included Easy magnetic mounting to most racks and cabinets Compatible with Tripp Lite LX Platform devices . . TAA Compliant : Yes Environmentally Friendly : Yes USB : Yes Product Color : Black Limited Warranty : 2 Year Package Contents : E2MTHDI EnviroSense2 Environmental Sensor Module USB Cable (A/Micro-B), 3 ft. Owner's Manual Manufacturer Website Address : http://www.tripplite.com Number of USB Ports : 1 Product Type : Temperature & Humidity Sensor Manufacturer : Tripp Lite by Eaton Product Model : E2MTHDI Compatibility : Tripp Lite LX Platform Devices WEBCARDLX WEBCARDLXS PDU3XE-Series PDUs PDU3E-Series PDUs Country of Origin : Taiwan Product Line : EnviroSense2