EMAY EMO-90
EMAY EMO-90 Sleep Oxygen Monitor User Manual
Brand: EMAY | Model: EMO-90
1. Introduction and Overview
The EMAY EMO-90 Sleep Oxygen Monitor is a Bluetooth pulse oximeter designed for both spot-check and continuous overnight tracking of blood oxygen saturation (SpO2) and heart rate. It features 72 hours of built-in memory, allowing for stand-alone operation without constant smartphone connection. The device provides informative reports and detailed analysis through its accompanying PC software and mobile application.

This image illustrates the EMAY EMO-90 Sleep Oxygen Monitor in use, attached to a finger. It also shows the accompanying smartphone application and PC software, which provide detailed data visualization and reporting capabilities for oxygen saturation and heart rate.
Key Features:
- Dual Operating Modes: Supports both real-time spot checks and continuous tracking for detailed data recording.
- 72-Hour Built-in Memory: Operates independently, storing data for up to 72 hours without needing a smartphone connection.
- Adjustable Audio Alarm: Notifies users if oxygen levels or heart rate drop below preset thresholds.
- Comprehensive Software & App: Free PC software (Windows/macOS) and mobile app (iOS/Android) for data download, review, analysis, and professional report generation.
- Rechargeable Battery: Features a lightweight, rechargeable lithium-ion battery, eliminating the need for disposable batteries.
2. Package Contents
Upon unpacking, please ensure all the following items are present:
- EMAY EMO-90 Sleep Oxygen Monitor Device
- USB Charging Cable
- Finger Strap (for secure overnight wear)
- User Manual
3. Setup
3.1 Charging the Device
Before first use, fully charge the EMAY EMO-90 monitor. Connect the provided USB charging cable to the device and a compatible USB power source (e.g., computer USB port, wall adapter). The battery indicator on the device screen will show charging status.

The EMAY EMO-90 is equipped with a rechargeable lithium battery, offering convenience and eliminating the need for disposable AAA batteries. It charges via a standard USB connection.
3.2 Wearing the Device
To ensure accurate readings, place the monitor securely on your finger. The device is designed to fit comfortably. For continuous overnight tracking, use the included finger strap to keep the device in place and prevent it from falling off during sleep.
3.3 App and PC Software Installation
Download the "EMAY Pulse Oximeter" application from the App Store (for iOS devices) or Google Play Store (for Android devices). For PC users, download the EMAY PC software from the official EMAY website (refer to the included manual for specific download links).
3.4 Connecting to App/PC
Ensure Bluetooth is enabled on your smartphone or computer. Open the EMAY Pulse Oximeter app or PC software and follow the on-screen instructions to connect to your EMO-90 device. The connection allows for data synchronization and detailed report generation.
4. Operating Instructions
4.1 Powering On/Off
To power on the device, press and hold the main button until the screen illuminates. To power off, press and hold the button again until the screen turns off.
4.2 Operating Modes
- Spot Check Mode: For real-time readings, simply power on the device and place it on your finger. The screen will display your current SpO2 and heart rate. Data is not recorded in this mode.
- Continuous Tracking Mode: For overnight or extended monitoring, activate this mode (refer to the device's on-screen menu or app settings). The device will record data second-by-second for later analysis.

The EMAY EMO-90 monitor is designed for comfortable overnight wear, allowing for continuous tracking of oxygen saturation and heart rate during sleep. Its secure fit ensures data collection without disturbance.
4.3 Audio Alarm Function
The EMO-90 features an audio alarm that can be configured to alert you if your SpO2 or heart rate falls below a specified threshold. Alarm settings can be adjusted directly on the device or through the mobile application.

The device features an adjustable audio alarm that activates if oxygen levels or heart rate fall below user-defined thresholds, providing an alert during continuous monitoring.
4.4 Data Review and Analysis
After recording, connect your device to the EMAY app or PC software to download and review your data. The software provides detailed graphs, trends, and summary reports, including Oxygen Desaturation Index (ODI) data.

The dedicated PC software (compatible with Windows and macOS) allows users to download, review, and analyze historical data, generating comprehensive reports with trends and event lists.

The EMAY smartphone application (available for iOS and Android) enables easy data synchronization, review of historical trends, and sharing of professional reports with healthcare providers.
4.5 Data Export
The app and PC software allow you to export granular data as CSV files, facilitating further analysis or sharing with healthcare professionals.
5. Maintenance
5.1 Battery Care
To maintain optimal battery life, charge the device regularly, ideally after each night of continuous use. Avoid fully discharging the battery frequently. Store the device in a cool, dry place when not in use.
5.2 Cleaning
Clean the device regularly with a soft, dry cloth. Do not use abrasive cleaners or immerse the device in water. Ensure the sensor area is free from dirt or debris for accurate readings.
6. Troubleshooting
If you encounter issues with your EMAY EMO-90 Sleep Oxygen Monitor, please refer to the following common solutions:
- No Reading/Inaccurate Readings: Ensure the device is securely placed on your finger and the sensor is clean. Avoid excessive movement during measurement.
- Device Not Powering On: Check the battery level and charge the device if necessary.
- Connection Issues (Bluetooth): Ensure Bluetooth is enabled on your smartphone/PC and the device is within range. Restart both the device and your phone/PC.
- App/Software Problems: Ensure your app/software is updated to the latest version. Try reinstalling the application if issues persist.
For more detailed troubleshooting or persistent issues, please consult the full user manual included in the package or contact EMAY customer support.
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | EMO-90 Sleep Oxygen Monitor |
| Brand | EMAY |
| Measuring Range (SpO2) | 70% to 100% |
| Battery Type | 1 Lithium Ion battery (rechargeable) |
| Memory | 72 hours of built-in data storage |
| Connectivity | Bluetooth (for app/PC software) |
| Color | Blue |
| Package Dimensions | 3.86 x 3.82 x 1.73 inches |
| Weight | 4.66 ounces |
8. Warranty and Support
For information regarding product warranty, please refer to the warranty card included in your product packaging or visit the official EMAY website. For technical support, troubleshooting assistance, or any other inquiries, please contact EMAY customer service through their official channels.
Please note that extended protection plans may be available for purchase separately and are not part of the standard product warranty.
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