Introduction
Thank you for choosing the MIUCDA Mini WiFi 6 Smart Power Meter (Model M-WPM20). This device is designed to monitor the power consumption of your appliances in real-time, providing valuable insights into your energy usage. With its single-channel 16A capacity, it is suitable for various household devices. This smart meter integrates with the Tuya/Smart Life app and is compatible with voice assistants like Alexa and Google Home, allowing for convenient control and automation.
This manual provides detailed instructions for the safe and efficient installation, operation, and maintenance of your smart power meter. Please read it thoroughly before use and keep it for future reference.

Image: The MIUCDA Mini WiFi 6 Smart Power Meter is equipped with advanced WiFi 6 and Bluetooth 5.2 chips, ensuring a stable and reliable connection without the need for an additional gateway.
Setup
1. Safety Precautions
- Ensure the main power supply is turned off before any installation or wiring.
- Installation should be performed by a qualified electrician if you are unsure.
- Do not exceed the maximum rated current of 16A or operating voltage of 240V AC.
2. Wiring Instructions
The MIUCDA Smart Power Meter features a safe, hidden terminal design for secure wiring. Follow the diagram below for correct connection.

Image: Detailed wiring diagram illustrating the connection points for the Live (L) and Neutral (N) wires on the MIUCDA Smart Power Meter. The hidden terminal design ensures safety and a clean installation.
- Connect the incoming Live (L) wire to the 'L' input terminal.
- Connect the incoming Neutral (N) wire to the 'N' input terminal.
- Connect the outgoing Live (L) wire to the 'L' output terminal (to the appliance).
- Connect the outgoing Neutral (N) wire to the 'N' output terminal (to the appliance).
- Ensure all connections are tight and secure.
3. App Installation and Device Pairing
- Download the Tuya Smart or Smart Life app from your smartphone's app store (iOS or Android).
- Register or log in to your account.
- Power on the MIUCDA Smart Power Meter. The indicator light should start blinking, indicating it's in pairing mode. If not, refer to the app's instructions for resetting the device.
- In the app, tap the "+" icon to add a new device.
- Select the appropriate device type (e.g., "Electricity Meter" or "Power Monitor").
- Follow the on-screen instructions to connect the device to your 2.4GHz Wi-Fi network.
- Once successfully paired, you can rename the device for easier identification.
Operating Instructions
1. Monitoring Power Consumption
After successful setup, you can monitor your device's power consumption in real-time through the Tuya Smart or Smart Life app.

Image: The app interface displays current power (W), current (mA), voltage (V), and total energy usage (kWh). Historical data can be viewed daily, monthly, or yearly, and reports can be sent via email.
- Open the app and select your MIUCDA Smart Power Meter.
- The main screen will display real-time data such as current power (W), current (mA), and voltage (V).
- Navigate to the "Statistics" or "History" section to view daily, monthly, or yearly energy consumption (kWh).
- You can also export power data to your email with a single click for detailed analysis.

Image: The smart meter provides continuous monitoring of voltage, current, and power, accessible anytime and anywhere through the Tuya or Smart Life application on your mobile device.
2. Smart Scene Automation
Automate your home by creating smart scenes within the Tuya Smart or Smart Life app. You can set conditions based on power consumption to trigger other smart devices or receive notifications.
- Example: Set a scene to notify you if a device's power consumption drops below a certain threshold, indicating it has finished its cycle (e.g., washing machine).
- Example: Monitor solar panel (PV) self-consumption, grid feed-in, power purchase, and real-time consumption, then analyze the self-consumption rate.

Image: The smart meter can be used to monitor and optimize the self-consumption of photovoltaic (PV) systems, tracking generation, grid input, power purchases, and real-time usage.
3. Voice Control Integration
The MIUCDA Smart Power Meter is compatible with Alexa and Google Home. Link your Tuya Smart or Smart Life account to your voice assistant app to enable voice commands.
- Example commands: "Alexa, what is the power consumption of the refrigerator?" or "Hey Google, tell me the energy usage of the washing machine."
4. Power Consumption Reminder Settings
Set daily or weekly power consumption thresholds in the app to receive reminders when the set limit is reached.

Image: The app allows users to configure daily and weekly power consumption reminders. Once a threshold (e.g., 0-99999 kWh) is set, a notification will be issued when that consumption level is reached.
- In the device settings within the app, locate "Usage reminder settings."
- Choose "Daily power consumption (kWh)" or "Weekly power consumption (kWh)."
- Enter your desired threshold and confirm.
Maintenance
- Keep the device clean and dry. Use a soft, dry cloth for cleaning.
- Do not use abrasive cleaners or solvents.
- Ensure the device is not exposed to extreme temperatures or humidity.
- Regularly check wiring connections for tightness, especially after initial installation.
Troubleshooting
1. Device Not Connecting to Wi-Fi
- Check Wi-Fi Signal: Ensure the device is within range of your 2.4GHz Wi-Fi router. The device's Wi-Fi reception may be sensitive, so closer proximity to the router or a Wi-Fi extender might be necessary, especially if walls are present.
- Router Settings: Confirm your router is broadcasting a 2.4GHz network. The device does not support 5GHz Wi-Fi.
- Password: Double-check that you entered the correct Wi-Fi password in the app.
- Reset Device: Refer to the app's instructions or the device's manual for how to reset the device to pairing mode.
2. Inaccurate Readings
- Wiring: Verify that all wiring connections are correct and secure according to the wiring diagram. Loose connections can lead to inaccurate measurements.
- Load: Ensure the connected appliance's power consumption is within the device's 16A limit.
3. App Not Displaying Data
- Internet Connection: Ensure your smartphone has an active internet connection.
- App Update: Make sure your Tuya Smart or Smart Life app is updated to the latest version.
- Device Status: Check if the device is still connected to Wi-Fi (indicator light status).
Specifications

Image: The compact size of the MIUCDA Smart Power Meter (34mm x 17mm x 29mm) allows for easy integration into various electrical setups, including standard junction boxes.
| Brand | MIUCDA |
| Manufacturer Reference ID | M-WPM20 |
| Product Dimensions (L x W x H) | 34 x 17 x 29 mm |
| Operating Mode | Automatic |
| Rated Current | 16 Amperes |
| Operating Voltage | 240 Volts AC |
| Contact Type | Normally Open |
| Connector Type | Screw |
| Terminal | Screws |
| Material | Alloy Steel |
| Circuit Type | 1-position |
Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or contact MIUCDA customer service directly. Contact details can typically be found on the product packaging or the official MIUCDA website.