Wi-Fi connected mobile phone remote control, unlimited distance. The Smart Life app allows remote measurement, remote settings, and power usage curves. safe electricity use and monitor power usage data in real time for a clear overview Real-time current and voltage curve display Based on user suggestions,engineers have added a voltage and current curve function to this design, which allows users to easily view the current and voltage fluctuations in the past 3 minutes Screen specifications, full-viewing angle IPS high-definition full-color 26K resolution 240*RGB*240, bring a different color visual experience and design a variety of functional interface content. The intelligent design can realize the division of electricity consumption in multiple time periods, calculate different electricity prices and charges for each time period, and set 4 tiered electricity prices. The interval electricity price can be freely set for each tier. One phone controls multiple devices at the same time It supports one phone controlling multiple devices, and multiple phones controlling one device. Due to limited details, only some of the controlled devices are shown, but it is possible to control more devices Hign-concerned Chemical:None (The product printed words depending on the batch, but this does not affect use) Color:As Shown Material:plastic Package Contents: 1 * WiFi Smart Din Rail 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.