HealthTree JKS50B
HealthTree Fingertip Pulse Oximeter User Manual
Model: JKS50B
1. Introduction
This manual provides comprehensive instructions for the safe and effective use of your HealthTree Fingertip Pulse Oximeter. Please read this manual thoroughly before use and retain it for future reference.
What's Included
- 1 x Fingertip Pulse Oximeter
- 2 x AAA Batteries
- 1 x Lanyard
- 1 x User Manual
Key Features
- Accurate and reliable SpO2 (Blood Oxygen Saturation) and Pulse Rate measurements.
- Fast readings, typically within 5-8 seconds.
- One-button operation for ease of use.
- Bright OLED display for clear readability.
- Automatic power-off after 10 seconds of inactivity to conserve battery life.
- Compact and lightweight design with included lanyard for portability.

Figure 1: Overview of Product Features

Figure 2: Compact and Portable Design
2. Product Overview
Components
Familiarize yourself with the different parts of your pulse oximeter:
- OLED Screen: Displays SpO2, Pulse Rate, Perfusion Index (PI), and battery indicator.
- One-Button Control: For powering on and initiating measurements.
- Finger Sensor: Where the finger is placed for measurement.
- Battery Cover: Protects the battery compartment.
Figure 3: Product Detail and Components
3. Setup
Battery Installation
- Open the battery cover on the back of the device.
- Insert the two AAA batteries into the compartment, ensuring the polarity (+ and -) matches the diagrams inside the compartment.
- Close the battery cover securely.
Figure 4: Correct Battery Installation
Powering On/Off
- To Power On: Press the power button once. The device will display the HealthTree logo and then enter the measurement interface.
- To Power Off: The device will automatically power off after 10 seconds of inactivity (when no finger is detected).
Figure 5: Automatic Shutdown Feature
4. Operating Instructions
Taking a Measurement
- Ensure the batteries are correctly installed.
- Open the clamp of the oximeter.
- Insert one of your fingers (preferably the index or middle finger) into the rubber opening of the oximeter, ensuring your nail is facing upwards towards the screen.
- Release the clamp.
- Press the power button once to start the measurement.
- Keep your hand still during the measurement. The readings for SpO2 and Pulse Rate will appear on the screen within 5-8 seconds.
Figure 6: One-Click Measurement
Figure 7: Accurate and Fast Measurement
Important Measurement Tips
- Keep your body still during the measurement. Movement can affect accuracy.
- Ensure your fingers are warm. Cold fingers can lead to inaccurate readings.
- Do not have long nails or nail polish, as this can interfere with the sensor.
- Avoid using artificial nails during measurement.
Figure 8: Tips for Accurate Measurement
5. Maintenance
Cleaning and Care
- Clean the surface of the oximeter with a soft cloth dampened with medical alcohol (75% ethanol or isopropanol) before and after each use.
- Do not immerse the device in water or other cleaning solutions.
- Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- Remove batteries if the device will not be used for an extended period to prevent battery leakage.
6. Troubleshooting
Common Issues and Solutions
| Issue | Possible Cause | Solution |
|---|---|---|
| Display shows 'Finger out' or no reading | Finger not inserted correctly; finger too cold; excessive movement; long nails/nail polish. | Reinsert finger correctly; warm your finger; remain still; remove nail polish or trim nails. |
| Display shows 'Low Battery' | Batteries are low or incorrectly installed. | Replace batteries with new ones, ensuring correct polarity. |
| Inaccurate readings | Movement during measurement; cold fingers; strong ambient light; device malfunction. | Ensure stillness and warm fingers; move to a less brightly lit area; contact customer support if issues persist. |
| Device does not turn on | No batteries; dead batteries; incorrect battery installation. | Install new batteries, ensuring correct polarity. |
7. Specifications
| Specification | Detail |
|---|---|
| Product Dimensions | 2.25 x 1.2 x 1.25 inches; 2.4 ounces |
| Item Model Number | JKS50B |
| Batteries | 2 AAA batteries required (included) |
| Battery Life | Approximately 30 Hours |
| Manufacturer | HealthTree |
| Color | Gray |
| Measuring Range | SpO2, PR (Pulse Rate), PI (Perfusion Index) |
8. Safety Information
Important Legal Disclaimer
Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
This device is intended for sports and aviation use only and is not a medical device. Consult with a healthcare professional for any medical concerns.
9. Warranty and Support
Warranty Information
Specific warranty details are not provided in the product information. Please refer to the product packaging or contact the manufacturer directly for warranty terms and conditions.
Customer Support
For any questions, technical assistance, or support regarding your HealthTree Fingertip Pulse Oximeter, please contact HealthTree customer service through their official website or the contact information provided on the product packaging.
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