Features 1、Multifunctional: This real time electricity monitor is multifunctional and can monitor current, active power, voltage, frequency, power factor and other real time data. 2、Multi Channel Measurement: This smart home energy monitor supports multi channel measurement, which can measure solar power and grid power at the same time, and can also measure electrical appliances individually. 3、Pluggable Card Coil: The card coil of this electricity usage monitor supports pluggable, suitable for 3 phases 4 wires (US commercial, European home), single phase 3 wires (US home), single phase 2 wires (European home). 4、Settable: This electricity monitor has 3 main card loops, 2 secondary card loops all support bidirectional measurement, the card loops are reversed and the power is negative. If the secondary card ring is measured in reverse, you need to manually set the phase of the app, the rest of the situation is automatically recognized (follow up app plus reminders). 5、Wide Application: This energy consumption monitor meter has a wide range of applications and can be used in homes, apartments, offices, villas and more. Specification Item Type: Smart Home Energy Monitor Material: ABS Model: SP360 200A Size: Approx. 111.3 x 81.2 x 41.4mm / 4.38 x 3.2 x 1.63in WIFI: 802.11 b/g/n at 2.4GHz Working Frequency: 2.4GHz External Antenna Operating Voltage: 90-277VAC 50, 60 Hz Supported Systems: Single Phase to 380VAC Line Neutral Point, Split Phase 120, 240VAC, 3 Phase Up to 480Y, 277VAC (No Delta, Y, Star Connection) Calibration Accuracy: 2% Interval: Every 15 Seconds Package List 1 x Smart Home Energy Monitor 5 x Calipers 1 x Power Cord 1 x Accessories Pack 1 x Antenna 1 x Manual