1. Introduction
The CHOICEMMED Fingertip Pulse Oximeter is a portable, non-invasive device designed for spot-checking blood oxygen saturation (SpO2) and pulse rate. It is intended for use in sports and aviation activities, such as by mountain climbers, bikers, trainers, aviators, and general sport enthusiasts, to quickly assess SpO2 levels. This device is not intended for medical use or continuous monitoring.

Image: The ChoiceMMed Fingertip Pulse Oximeter, showing its compact design and the accessories it comes with, including a protective pouch, neck lanyard, and two AAA batteries.

Image: A visual representation emphasizing the key features of the oximeter: its portability (weight 1.76oz), accuracy (SpO2 & PR measurement within ±2% and ±2bpm), and a large, bright LED display for easy visibility in any environment.
2. Important Safety Information
- This device is for Sports and Aviation use only. It is not intended for medical diagnosis or treatment. Consult a medical professional for any health concerns.
- Do not use the oximeter on the same finger for more than 5 minutes continuously.
- Keep the device away from water and moisture.
- Do not use the device in an MRI or CT environment.
- Avoid using the device in the presence of flammable anesthetics.
- Keep out of reach of children. Small parts may pose a choking hazard.
3. What's Included
Your CHOICEMMED Fingertip Pulse Oximeter package includes the following items:
- 1 x Fingertip Pulse Oximeter (Model DK03)
- 1 x Durable Protective Pouch (with loop for belt)
- 1 x Neck Lanyard (detachable and adjustable length)
- 2 x AAA Alkaline Batteries
- 1 x Instruction Manual

Image: A clear view of all components included in the product package: the Fingertip Pulse Oximeter, a blue carrying case, a black lanyard, two AAA batteries, and the Operator's Manual.

Image: This graphic highlights additional features: the display faces the user for easy reading, a summary of included items (lanyard, case, batteries, user manual), and the impressive 40-hour battery life with low power indication and auto-off function.
4. Setup and Battery Installation
The device requires two AAA alkaline batteries for operation. Please follow these steps to install the batteries:
- Locate the battery compartment cover on the back of the device.
- Slide the cover open in the direction indicated by the arrow.
- Insert the two AAA batteries, ensuring the positive (+) and negative (-) terminals align correctly with the markings inside the compartment.
- Close the battery compartment cover by sliding it back until it clicks into place.
Important: Ensure the springs in the battery compartment are on the correct side, matching the plus/minus signs engraved on the battery casing.
5. Operating Instructions
To obtain a measurement, follow these simple steps:
- Open Oximeter: Squeeze the clip end of the oximeter to open the finger chamber.
- Place Finger: Insert one of your fingers (preferably the index or middle finger) into the rubber opening of the oximeter, ensuring your fingernail is facing upwards towards the display.
- Press Power Button: Release the clip and press the power button on the front panel once.
- Wait for Results: Keep your hand still. Your SpO2 and pulse rate readings will appear on the display within approximately 10 seconds.

Image: A visual step-by-step guide demonstrating the fast measurement process: 1. Open Oximeter, 2. Place your Finger in the Oximeter, 3. Press the Power Button, 4. Waiting for Results.
Display Information and Modes
The oximeter features a large LED display that shows your SpO2 percentage, pulse rate (BPM), and a pulse bar graph. It offers 6 display modes and 4 directions for optimal viewing.

Image: An annotated diagram of the oximeter's display, pointing out the Pulse Rate (PR BPM), Pulse Bar Graph, Oxygen Saturation (SpO2%), Low Power Indicator, and the Power Button.

Image: This image illustrates the patented multi-directional display feature, showing how the screen can rotate 180 degrees to allow for easy viewing from different angles.

Image: A close-up of the oximeter in use on a finger, showcasing the large, bright digital numbers on the LCD display for accurate Pulse Rate and Oxygen Saturation readings, along with a low power indicator and 2-directional display capability.
Press the power button briefly during measurement to cycle through the available display modes and orientations.
6. Maintenance and Storage
Cleaning
- Clean the surface of the oximeter with a soft cloth dampened with 70% isopropyl alcohol.
- Do not immerse the device in water or any cleaning solution.
- Ensure the device is completely dry before reuse.
Storage
- Store the oximeter in its protective pouch when not in use.
- Keep 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.
7. Troubleshooting and FAQs
- Q: What is a Pulse Oximeter?
- A: A pulse oximeter is a non-invasive device that indirectly monitors blood oxygen saturation (SpO2) and pulse rate (heart rate). It displays both blood oxygen saturation (SpO2) and pulse rate (heart rate). Pulse oximeters provide an easy way of assessing your blood oxygen level and pulse rate.
- Q: What is SpO2?
- A: SpO2 is also known as oxygen saturation. Oxygen saturation is a measure of how much oxygen the blood is carrying as a percentage of the maximum it could carry.
- Q: What is the normal range of SpO2?
- A: The normal range for SpO2 is typically considered from 95%-99%. The SpO2 measurement may be lower for people who live at high altitudes. Ask your health professional this question as it pertains to you.
- Q: What is the normal range for pulse rate?
- A: The normal resting range for pulse rate is typically considered from 60-100 beats per minute. Ask your health professional this question as it pertains to you.
- Q: What kind of conditions may cause an inaccurate reading?
- A: Cold hands, poor circulation, very weak pulse, movement during measurement, fingernail polish, and acrylic nails may cause inaccurate results.
- Q: SpO2 is not changing - it's stuck?
- A: SpO2 does not change like pulse rate. It is slow to change.
- Q: I do not see the battery light indicator.
- A: The battery light indicator only appears when the battery is low.
- Q: Why are the springs in the battery compartment on the same side?
- A: Make sure to follow the plus/minus signs engraved on the battery casing and not follow the direction of the springs.
- Q: The pulse rate is changing rapidly.
- A: Your heart rate changes with emotions, excitement, and exercise.
8. Technical Specifications
| Model Name | DK03 |
| Part Number | C1F |
| Measuring Range (SpO2) | 70% ~ 99% |
| Display Type | LED |
| Power Source | 2 x AAA batteries (included) |
| Battery Life | Approximately 40 hours of continuous operation |
| Item Dimensions (LxWxH) | 2.28 x 1.26 x 1.34 inches |
| Item Weight | 3.2 Ounces |
| Material | Plastic |
| Color | Black |
| Country of Origin | China |

Image: A visual representation of the oximeter's dimensions, indicating its length (2.5"), width (1.2"), and height (1.15").
9. Warranty and Support
Warranty Information
The CHOICEMMED Fingertip Pulse Oximeter comes with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. It does not cover damage caused by misuse, accidents, unauthorized repairs, or failure to follow the instructions in this manual.
Please retain your proof of purchase for warranty claims.
Customer Support
For any questions, technical assistance, or warranty claims, please contact CHOICEMMED customer support. Refer to the contact information provided in the packaging or on the official CHOICEMMED website.
You can also visit the official CHOICEMMED store on Amazon for more information: CHOICEMMED Amazon Store


