Premium quality: The electronic KWh meter has good anti-electromagnetic interference, low power consumption, high precision, high overload, high stability, anti-theft, long service life.Product brief: bipolar width, conform to DIN43880 standard, built-in terminal cover, nice, safe to protect electricity, standard configuration LCD display5+1 digits (9999999.1kWh).Advantage: One-way measurement two-wire single-phase active power consumption. It is nothing with the direction of the load current flow. Complies with GB/T17245.321-2008 standard.Insulation performance: AC voltage 4kv for 1minute, waveform pulse voltage 1.2/50 us 6kv. High reliability, small size, light weight, beautiful appearance, advanced technology, install on standard 35mm DIN rail, etc.Practical tool: install on standard 35mm DIN rail, comply with the standard DIN EN50022, selection function possible (display voltage, current, power, frequency, power factor).