1. Product Overview
The Healthtree Pulse Oximeter Model JKS50C is a compact, portable device designed to measure blood oxygen saturation (SpO2) and pulse rate. It is intended for sports and general wellness reference purposes only and is not for medical or diagnostic use. This device features built-in data recording capabilities and connects to a smart application for detailed data review.
Key Features:
- Lightweight and portable design (approximately 50 grams).
- Integrated data recording functionality.
- Rechargeable lithium battery providing up to 12 hours of operation.
- Bluetooth connectivity to a smart application for real-time data and comprehensive reports.
2. Product Components and Display
Familiarize yourself with the components and display indicators of your pulse oximeter.

Figure 1: Labeled diagram of the Healthtree Pulse Oximeter, indicating key components and display elements.
- Lanyard Loop Hole: For attaching a lanyard.
- Battery Cover: Access point for battery installation.
- Pulse Rate Bar Graph: Visual representation of pulse strength.
- Finger Opening: Area where the finger is inserted for measurement.
- Blood Oxygen Saturation Level (%SpO2): Displays the percentage of oxygen in the blood.
- Pulse Rate (bpmPR): Displays the heart rate in beats per minute.
- One-Button Operation: Used to power on/off the device and navigate display modes.

Figure 2: Dimensions of the Healthtree Pulse Oximeter.
3. Setup
3.1 Battery Installation
- Locate the battery cover on the back of the device.
- Slide the battery cover open.
- Insert two AAA batteries (included) into the battery compartment, ensuring correct polarity (+ and -).
- Slide the battery cover back into place until it clicks securely.
3.2 App Installation
To utilize the smart features of your pulse oximeter, download the companion application:
- Open the App Store (for iOS devices) or Google Play Store (for Android devices) on your smartphone.
- Search for "Oximeter stroe" or "HealthTree".
- Download and install the application.

Figure 3: Example of the Healthtree companion app interface.
4. Operating Instructions
4.1 Taking a Measurement
- Press the power button to turn on the oximeter.
- Open the clamp by pressing the top and bottom parts of the device.
- Insert one finger (preferably the index finger) into the rubber opening of the oximeter, ensuring the nail surface is facing upwards. Make sure the finger is fully inserted.
- Release the clamp.
- Keep your hand still during the measurement. Readings for SpO2 and pulse rate will appear on the display within a few seconds.
- The device will automatically power off after approximately 8 seconds of inactivity.

Figure 4: Correct finger placement for measurement.
4.2 Bluetooth Connection and App Usage
To connect your oximeter to the Healthtree app:
- Ensure Bluetooth is enabled on your smartphone.
- Open the Healthtree application.
- Turn on your pulse oximeter. The app should automatically detect and connect to the device.
- Once connected, you can view real-time data, access historical readings, generate comprehensive sleep reports, and share data.
Video 1: Demonstrates how to connect the Healthtree Pulse Oximeter to the Bluetooth application.
5. Maintenance
5.1 Cleaning the Device
- Before cleaning, ensure the device is turned off and batteries are removed.
- Wipe the surface of the oximeter with a soft cloth dampened with medical alcohol (70% isopropyl alcohol).
- Do not immerse the device in any liquid.
- Allow the device to air dry completely before use or storage.
5.2 Storage
- Store the oximeter in a cool, dry place.
- Avoid direct sunlight, extreme temperatures, and high humidity.
- If the device will not be used for an extended period, remove the batteries to prevent leakage.
6. Troubleshooting
If you encounter issues with your Healthtree Pulse Oximeter, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No reading or inaccurate reading |
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| Bluetooth connection failure |
|
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| Device does not turn on |
|
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7. Specifications
- Brand: HealthTree
- Model Name: Bluetooth LED Fingertip Pulse Oximeter
- Model Number: JKS50C
- Measuring Range (SpO2): 70% - 100%
- Battery Type: 2 x AAA batteries (included)
- Battery Life: Approximately 20 hours of continuous operation
- Included Components: Pulse Oximeter, 2 AAA batteries, Lanyard
- Weight: Approximately 50 grams
8. Warranty and Support
8.1 Warranty Information
For detailed information regarding the product warranty, including coverage period and terms, please refer to the warranty card included with your product packaging or contact the seller directly. Keep your proof of purchase for warranty claims.
8.2 Customer Support
Should you require technical assistance, have questions about product operation, or need to report an issue, please visit the official HealthTree website or contact their customer service department using the contact information provided in your product documentation or on the seller's platform.






