High-precision measurement: can accurately monitor voltage, current, power, frequency, power factor, active energy, timing and other electrical parameters in one, convenient for real-time viewing Versatile voltage compatibility: designed to handle a wide range of AC voltages from 100-290V, making it suitable for a variety of electrical settings Compact and modular design: the mini modular form factor can be easily mounted on the DIN rail, saving space and ensuring a neat setup Clear LED display: with a bright LED digital display, it is easy to monitor readings and enhance visibility in low-light conditions Remote control: on distance, the mobile phone is the remote control, where there is a signal, you can control the device anytime, anywhere, support one mobile phone to control multiple switches, and can share multi-person control at the same time<br><br>Voltage range: AC 100-290V Current range: 0-40A Power range: 0-12KW Timing range: 99 days Energy range: 0-9999KWH Temperature range: -20~150 Frequency range: 50-60HZ Power factor: 0.00-1.00PF Power-off memory: Yes Overvoltage protection: Yes Undervoltage protection: Yes Overtemperature protection: Yes WIFI: Yes Timer switch: Yes on APP Graph: Yes on APP Material: PC Color: As shown (The product appearance and printed words depending on the batch, but this does not affect use)<br><br>Package Contents: 1 x Electricity Meter<br><br>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.