Features: Support for Google and Alexa voice control switch. The clamp ring supports bidirectional measurement (supports measurement of power consumption and power generation). Supports viewing data by hour, day, and month, with the option to compare consumed and generated energy. Displays real-time data including current, active power, voltage, frequency, and power factor. Equipped with 10A dry node output and app-controlled switch. Specification: Input: AC90-250V 50/60Hz Contact: 10A 220Vac (resistive) Clamp ring supports up to 80A for opening and closing Supports cloud-based scheduling; does not support local scheduling Overcurrent and overvoltage protection (threshold values can be set via app) Settings are retained during power off Supports Tuya automation and Tuya energy-saving features Supports OTA updates WiFi frequency: 2.4GHz Size: 46 x 18.7 x 46mm Material: Plastic Color: White Package Contents: 1 x Smart Power Meter 1 x CT Clamp Note: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3cm.