The 1408-EM1A-ENT is a PowerMonitor 1000 energy monitoring unit with 120/240 VAC power supply, featuring RS-485 serial communications (DF1 full/half duplex, Modbus RTU) and Ethernet connectivity. This open-style mountable unit was discontinued by the manufacturer on 07/31/2015. Includes Radwell's 2-year warranty (original factory warranty not applicable).