Feature: 1. Energy Monitoring: 3 phase 4 wire energy meter, monitoring bidirectional consumption, monitoring the electricity generated by solar PV system and the energy consumed by urban power grids, supporting linkage with other APP. 2. Mobile APP Control: After the smart energy meter is connected to WiFi (with network), users can check the device status anytime and anywhere on the for Tuya or for SMART LIFE APP (with mobile signal), which is efficient and convenient. 3. Multiple Functions: This WiFi energy meter supports real time monitoring of voltage, current, power factor, active power, and frequency. The working voltage is AC90‑250VAC, and the measured current is 0.2‑300A. 4. Data Analysis: This smart energy meter can record the electricity consumption data of electrical appliances. By analyzing this data, users can understand their own electricity habits and plan their energy use reasonably. 5. Consumption Records: You can view hour, day, month, and year electricity consumption records on the APP, with a maximum retention time of over 1 year. It supports one click operating and automation of other devices. 6. Clamps and Relay: This smart energy meter comes with 3 200A clamp current transformer, built in relay, which provides overload guard, making it widely applied in solar and photovoltaic power system. Specification: Item Type: Smart Energy Meter Clamp: 200Ax3 WIFI: 802.11 B/G/N20/N40 BLE: BT 5.2 Low Energy RF Characteristics: Working Frequency: 2.4GHz Built in Antenna Working Voltage: AC90-250V 50/60Hz Calibration Measurement Accuracy: ≤100W (within ±2W), >100W (within ±2%) Maximum Load Current: 16A Dry Contacts (Optional) Working Temperature: -20℃-55℃ Humidity Range: ≤90% Non condensing Size: Approx. 90 x 65 x 35mm / 3.5 x 2.6 x 1.4in Supports Voice Control. Package List: 1 x Energy Meter 3 x Clamps 1 x User Manual