DIN Rail Installation: The energy monitor is small in size, light in weight, reliable, and easy to install. 35mm standard DIN rail installation conforms to DIN EN50022 standard. Six widths (12.5 mm modulus) according to DIN43880 Two Wiring Methods: The rail-type electric energy meter has direct connection operation, and two wiring methods. S-type wiring is standard configuration, U-type wiring is optional. Extended terminal cover for protection Easy Access to the AMR System: The standard configuration pulse output is passive (polarity), and the remote pulse output can be passive. KWH meter is easy to contact with various AMR systems, conforming to IEC 62053-31 and DIN43864 standards Two-color Indicates Power Supply: Standard 5+1 (99999.1KWh) digital display. The dual-color of the electric energy meter indicates the power state (green) and the electric energy pulse signal (red) Compliant with Electricity Measuring Equipment: This kilowatt-hour form is a one-way measurement of power consumption with two-wire phases. This has nothing to do with the direction of the load current, Weight: 0.551155655 Pounds, Manufacturer: BORDSTRACT