Product Overview
The EARUMZDQ PC311 Smart Two-Way Bilateral WiFi Energy Meter is designed to monitor electricity consumption and generation in both AC110V and 220V systems. It provides real-time data on voltage, current, active power, and power factor, accessible via the Tuya or Smart Life mobile applications. This device is ideal for tracking energy usage from the city grid and power generated by solar PV systems, offering comprehensive insights into your home's energy flow.

Image: The EARUMZDQ PC311 Smart Energy Meter module connected to two 80A Current Transformer (CT) clamps.
Key Features:
- Two-Way Energy Monitoring: Capable of monitoring both energy consumed from the city grid and energy generated by solar PV systems.
- Remote Monitoring: Connects to 2.4G WiFi for real-time data access and control via Tuya APP or SMART LIFE APP from anywhere.
- Comprehensive Measurement: Measures Voltage, Current, Power Factor, and Active Power.
- High Current Capacity: Includes two 80A Current Transformer (CT) Clamp Sensors with a 10MM hole diameter, supporting a current measure range of 80A+80A.
- Smart Home Integration: Supports Tap-to-Run and automation features with other Tuya-compatible devices.
- Historical Data Logging: Provides hour, day, month, and year energy consumption records on the APP, retaining data for over one year.
- Standard Installation: Designed for 35MM DIN RAIL mounting.
What's in the Box
- 1 x PC311 Smart Energy Meter Module
- 2 x 80A Current Transformer (CT) Clamp Sensors (10MM Diameter)
Setup and Installation
1. Physical Installation
The PC311 module is designed for 35MM DIN RAIL installation. Ensure the device is installed in a location with stable 2.4G WiFi coverage and within the specified ambient temperature and humidity ranges.

Image: Diagram showing the PC311 module with AC input, CT clamp connections, LED indicator, and reset button, along with mounting bracket details.
2. Wiring Diagram
Proper wiring is crucial for accurate measurement. Refer to the diagrams below for connecting the CT clamps based on your monitoring needs (consumption from grid, generation from solar, or load monitoring).

Image: Comprehensive wiring diagram illustrating how to connect CT clamps for measuring energy from the grid, from an inverter (solar generation), and from a specific load.
Important: The direction of the CT clamp matters for accurate readings. For measuring energy generation, the arrow on the clamp should face the inverter. For measuring consumption from the grid, install the CT on the leads coming from your mains.

Image: Two separate wiring diagrams. The top diagram shows CT2 connected to monitor energy generation from an inverter. The bottom diagram shows CT1 connected to monitor energy consumption from the grid, with arrows indicating current direction for 'From Grid' and 'To Grid' energy accumulation.
3. App Connection (Tuya/Smart Life)
The device connects to your home's 2.4G WiFi network. 5G WiFi is not supported. Follow these steps to pair the device with the Tuya or Smart Life app:
- Download and install the Tuya Smart or Smart Life app from your mobile app store.
- Register or log in to your account.
- Power on the PC311 module. The LED indicator should blink, indicating pairing mode.
- Open the app, tap "Add Device" or the "+" icon.
- The app should automatically discover the device (PC311_TY). Tap "Add".
- Enter your 2.4G WiFi network name and password when prompted.
- Wait for the device to connect. Once connected, you can rename it and start monitoring.
Video: A demonstration of the PC311 App Operation, showing the process of adding the device to the Tuya/Smart Life app and navigating through its features.
Operating Instructions
Monitoring Energy Data
Once connected, the Tuya or Smart Life app provides a comprehensive interface for monitoring your energy data. The data refreshes every 15 seconds.

Image: Screenshots of the mobile application interface, demonstrating how to view total forward energy, total generation, and detailed information for Circuit 1 and Circuit 2, including forward and reverse current measurements.
- Total Forward Energy: Displays the total energy consumed.
- Total Generation: Displays the total energy generated (e.g., from solar panels).
- Circuit 1 & Circuit 2: Provides detailed readings for each connected CT clamp, including current, active power, and power factor.
- Historical Data: Navigate through the app to view energy consumption records by hour, day, month, or year. The app stores data for over one year.

Image: A screenshot of the app displaying a daily energy consumption graph, showing total forward energy and total generation over time, with example appliances in the background.
Automation and Scene Creation
Leverage the "Tap-to-Run" and automation features within the Tuya/Smart Life app to integrate the energy meter with other smart devices. For example, you can set up automations based on energy consumption thresholds.
Maintenance
The EARUMZDQ PC311 energy meter requires minimal maintenance. Ensure the device is kept within its specified operating environment conditions:
- Temperature: -10°C to 55°C
- Humidity: ≤90% non-condensing
Regularly check the physical connections of the CT clamps and power input to ensure they are secure. Keep the device clean and free from dust and moisture.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not connecting to WiFi. | Incorrect WiFi password; 5G WiFi network; device too far from router; router issues. |
|
| Inaccurate energy readings. | Incorrect CT clamp direction; loose CT clamp connection; faulty CT clamp. |
|
| No data displayed in the app. | Device offline; app synchronization issue; power supply issue. |
|
For further assistance, please refer to the manufacturer's support channels.
Specifications
| Feature | Detail |
|---|---|
| Model Number | SCT-T10 |
| Rated Voltage | AC90-250V, 50/60HZ |
| Current Measure Range | 80A+80A (with 2PCS 80A CT Clamp Sensors) |
| CT Clamp Hole Diameter | 10MM |
| Wireless Connectivity | 2.4G WiFi (IEEE 802.11 b/g/n), Bluetooth 4.2 Low Energy |
| Compatible Apps | Tuya App, SMART LIFE App |
| Data Refresh Rate | 1 time / 15 seconds |
| Installation | 35MM DIN RAIL |
| Ambient Temperature Range | -10°C ~ 55°C |
| Humidity | ≤90% non-condensing |
| Product Dimensions | 1.81 x 1.81 x 0.71 inches |
| Weight | 6 ounces |
| Manufacturer | ZHEJIANG EARU ELECTRONICS CO.,LTD |
| Country of Origin | China |

Image: Detailed diagram illustrating the dimensions of the PC311 module and the 80A CT clamp, including length, width, height, and CT hole diameter.
Warranty and Support
For warranty information and technical support, please contact EARUMZDQ directly through their official website or the contact information provided with your purchase. Keep your purchase receipt as proof of purchase.
Manufacturer: ZHEJIANG EARU ELECTRONICS CO.,LTD





