[Consumption and Generated Bi-directional Energy Measurement]: Supports the measurement of how much energy is generated by the monitor application for solar and photovoltaic systems, as well as its power consumption. [Highly Accurate Calibration Meter]: Each part is calibrated before delivery to high accuracy. [Power Statistics and Quick Bill Check]: Application tracks current, power, voltage in real time; hourly, daily and monthly power statistics; quick check of daily and monthly accounts, monitor monthly daily expenses by saving money, energy and CO2. [Home Automation]: Support for creating scenarios in the app and setting conditions for using other Tu-ya devices in the app. Allow another TU-YA device to turn on or off when the power or kWh generated or consumed reaches its value. [Message Notification]: When the consumed or generated power (W) or kWh reaches a value, the application sends a notification so that you know when the solar or photovoltaic system starts working. [1.5m Long Cable]: External current transformer with 1.5 m cable connector, 16 mm, 150 A. [Easy Installation]: Use the application to configure the module, then place the clamp on the wire under test to work. Easy to install, no wires to remove, safe, reliable and economical. Name: Tu-ya WiFi Energy Meter Colour:White Material:plastic Package Contents: 1 x Bidirectional Energy Meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.