1. Introduction
The Wellue ER1-LW is a portable single-lead ECG Holter monitor designed for continuous heart activity recording. It offers up to 72 hours of continuous monitoring, features a built-in screen, touch key for event marking, and supports AI-powered analysis for identifying 17 types of ECG rhythm abnormalities. This manual provides essential information for the safe and effective use of your ER1-LW device.
Figure 1: Wellue ER1-LW ECG Holter Monitor in use.
2. What's in the Box
Carefully unpack your ER1-LW device and check for the following components:
- ER1-LW ECG Holter Monitor
- USB Charging Cable
- Chest Strap (for continuous monitoring)
- Disposable ECG Electrodes (patches)
- User Manual (this document)
- Quick Guide
- Warranty Card
- Multi-port adapter (USB-A, USB-C, Lightning) for data transfer (may vary by package)
Video 1: Unboxing and overview of the Wellue ER1-LW ECG Holter Monitor and its accessories.
3. Product Overview
The ER1-LW is a compact and lightweight device designed for comfortable wear. It features an OLED display and a touch key for easy operation.
Figure 2: ER1-LW device components. The 'R' symbol indicates direction, the OLED display shows real-time data, and the touch key functions as a patient event button.
Key Features:
- Single-Lead ECG recording
- Up to 24/72 hours continuous recording (depending on version)
- No wired connections during monitoring
- AI-ECG analysis support
- Event trigger function
- Bluetooth/USB connection for data transfer
Figure 3: Overview of ER1-LW key features.
4. Setup and Wearing Instructions
4.1 Charging the Device
Before first use, fully charge the ER1-LW device. Connect the USB charging cable to the device and a power source. The OLED display will indicate charging status. A full charge provides up to 7 days of battery life for monitoring.
Figure 4: The ER1-LW offers up to 7 days of battery life.
4.2 Wearing the Device
The ER1-LW can be worn in two primary ways: using disposable ECG electrodes or with a chest strap.
Using Disposable ECG Electrodes:
- Ensure your skin is clean and dry where the electrodes will be placed.
- Attach two disposable ECG electrodes to the back of the ER1-LW device.
- Place the device on your chest, ensuring good contact between the electrodes and your skin. The 'R' symbol on the device should point towards your right side.
Using the Chest Strap:
- Insert the ER1-LW device into the designated slot on the chest strap.
- Secure the chest strap around your chest, ensuring it is snug but comfortable. The device should be positioned centrally on your chest.
Figure 5: Wearing options for the ER1-LW: directly with electrodes or with a chest strap.
5. Operating Instructions
5.1 Starting a Recording
Once the device is properly worn, press and hold the touch key (patient event button) for a few seconds until the OLED display shows a recording indicator. The device will begin continuous ECG recording.
5.2 Marking Events
If you experience any symptoms or feel uncomfortable during monitoring, briefly press the touch key. This will mark an event in the recording, which can be helpful for later analysis.
5.3 Stopping a Recording
To stop the recording, press and hold the touch key again until the recording indicator disappears from the OLED display.
5.4 Recording Duration
The ER1-LW supports continuous recording for either 24 hours or 72 hours, depending on the specific version of your device.
Figure 6: ER1-LW recording duration options.
6. Data Transfer and AI Analysis
After recording, you can transfer the data to a PC or compatible mobile device for detailed analysis using the dedicated AI-ECG analysis system software.
6.1 Connecting to PC/App
Connect the ER1-LW device to your computer using the provided USB cable or a multi-port adapter. Follow the instructions in the software to download your ECG data.
6.2 AI-ECG Analysis
The AI-ECG analysis system software can interpret your ECG data, identifying up to 17 types of abnormal ECG patterns. This includes conditions like Atrial Fibrillation and Atrial Flutter. The software also supports automatic event marking for comprehensive review.
Figure 7: AI-powered ECG analysis and report generation on a computer.
6.3 Usage Scenarios
The ER1-LW is suitable for monitoring heart activity across various scenarios:
- Sleep: Monitor heart rhythm during rest.
- Exercise: Track ECG changes during physical activity.
- Breathing: Observe heart response during breathing exercises or periods of stress.
Figure 8: ER1-LW supports monitoring during sleep, exercise, and breathing activities.
7. Maintenance
7.1 Cleaning
Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or immerse the device in water. Ensure the charging contacts are clean and dry.
7.2 Storage
Store the device in a cool, dry place away from direct sunlight and extreme temperatures. Keep it out of reach of children.
7.3 Battery Care
To prolong battery life, avoid fully discharging the device frequently. Charge it regularly, even if not in active use, to maintain battery health.
8. Troubleshooting
- Device not turning on: Ensure the device is fully charged. Connect it to the charger and check the battery indicator.
- No ECG signal: Check that the electrodes or chest strap are making good contact with your skin. Ensure your skin is clean and dry.
- Data transfer issues: Verify that the USB cable or adapter is securely connected to both the device and your computer/phone. Ensure the analysis software is correctly installed and updated.
- Inaccurate readings: Avoid excessive movement during recording. Ensure proper placement of the device.
9. Specifications
| Category | Specification |
|---|---|
| Brand Name | Wellue |
| Model Number | ER1-LW |
| Place of Origin | Guangdong, China |
| Power Source | Electricity |
| Power Supply Mode | USB recharge |
| Material | Plastic |
| Quality Certification | CE |
| Instrument Classification | Class II |
| Safety Standard | MOL |
| Lead Type | Single Lead (waveform similar to Lead II ECG) |
| Input Impedance | ≥10MΩ, 10Hz |
| Input Signal Range | 10mV (peak-to-bottom) |
| Common Mode Rejection Ratio | ≥60dB |
| Frequency Response | 0.67 - 40 Hz |
| Gain Error | Maximum error ±10% |
| Power Supply | Rechargeable polymer battery; 3.8V DC, 240mAh |
| Battery Life | 168 hours (fully charged) |
| Charging Input | Voltage range 4.5 ~ 5.5V DC |
| Charging Time | 3 hours (to 90% capacity) |
| Device Size | 100×23×8.3 mm |
| Device Weight | <18 g (including battery) |
10. User Tips
- For best signal quality, ensure the skin area where electrodes are placed is clean, dry, and free of hair.
- If using the chest strap, adjust it to be comfortably snug to prevent movement artifacts in the ECG recording.
- Remember to mark any symptoms you experience using the event button; this helps in correlating symptoms with ECG changes during analysis.
- Regularly check the battery level on the OLED display to ensure uninterrupted recording.
- Keep the device and accessories clean to maintain optimal performance and hygiene.
11. Warranty and Support
The Wellue ER1-LW comes with a 1-year warranty. For technical support, troubleshooting assistance, or warranty claims, please refer to the contact information provided on your warranty card or visit the official Wellue website. Online technical support is available.
