Smart Power Meter

User Manual

A Wi-Fi product that combines smart switch modification, antenna, and current transformer. With the current transformer, you can monitor the power consumption of any household appliance, room, etc.

Energy monitoring

Energy saving

Smart timer

LAN control

Overload protection

Power failure memory

History record

Easy setup

  • The functional characteristics depend on the functionality of Zigbee gateway.
  • The equipment is only suitable for mounting at heights ≤ 2 m.
① Antenna interface
② Button
  • Single press: Turn on/off the smart device.
  • Press and hold for 5 seconds: Device enters the pairing mode. (Pairing time 10 minutes)
③ LED screen

  • When the measured power value exceeds 10,000W, the display screen will show the numerical value in scientific notation. For example, “10E3” represents 10kW, and “24E3” represents 24kW.
④ Protective cover
⑤ Transformer interface
⑥ Power LED indicator (Red)
  • Light on: Device is on.
  • Light off: Device is off.
⑦ Wi-Fi LED indicator (Blue)
  • Keeps on: Online
  • Flashes two short and one long: Device is in pairing mode.
  • Flashes once: Fail to connect to router
  • Flashes twice: Connected to router but fail to connect to server
  • Flashes three times: Firmware updating
⑧ Mounting base
⑨ Wiring identification (Visible after removing the protective cover)
Compatible Voice Assistants





100-240V~ 50/60Hz 2W

Wireless Connectivity

Wi-Fi IEEE 802.11 b/g/n 2.4GHz

Antenna interface type


Transformer interface type


Transformer current detection range


Net Weight

120g (Accessories not included)

Product dimension




Casing Material


Applicable Place


Working Temperature


Working Humidity

5-95%RH, non-condensing



Executive standard

EN IEC 61010-2-030

Measurement Category

CAT II 0-100A 300V~ MAX

Download the“eWeLink”App

Please download the “eWeLink” App from Google Play Store or Apple App Store.

1. Power off

*Please install and maintain the device by a professional electrician. To avoid electric shock hazard, do not operate any connection or contact the terminal connector while the device is powered on!

2. Install the current transformer and antenna
3. Wiring instruction
3-1 Remove protective cover.
3-2 Paired with a current transformer to monitor the power consumption of household appliances.
3-3 Paired with a current transformer and a contactor to monitor the power consumption of household appliances and can also control the power switch.
  • Make sure all wires are connected correctly.
4. Installation
Mount the device on the guide rail inside the distribution box. If the box is metal, it is recommended to place the antenna externally as shown in the diagram.
* The wiring layout of the antenna and current transformer should avoid crossing high-voltage busbars and approaching sharp edges and corners.
Test the current direction
The current direction in the line should match the arrow direction on the current transformer (see Figure 2).
Warning: To ensure electrical safety, the current transformer clamp should apply to double-insulated wires.
Add a Device
1.Download the“eWeLink”App

Please download the “eWeLink” App from Google Play Store or Apple App Store.

2.Add device
Enter “Scan”
Scan the QR code on the back of the quick guide.
Select “Add Device”
Power on the device
Long press the button for 5 seconds
Check Wi-Fi LED indicator flashing status (Two short and one long flashes)
Search for the device and start connecting
Select the “Wi-Fi” network and enter the password
Device added completely