1. Ngwaahịa gafereview
The CONTEC CMS50M Fingertip Pulse Oximeter is designed for non-invasive spot-check measurement of functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate (PR). It is suitable for use in sports and aviation, but not intended for medical diagnosis or treatment.

Image: CONTEC CMS50M Pulse Oximeter highlighting its key features.
- Accurate & Fast Results: Measures SpO2 (blood oxygen saturation), pulse rate, and displays a bar graph and pulse strength results on a digital LED display.
- Portable & Easy To Use: Lightweight (approximately 50g with batteries). Simply place your finger in the testing chamber for results.
- Comfortable & Long Battery Life: Features a soft silicone fingertip clip suitable for various finger sizes. Offers 20-30 hours of battery life and automatic power-off after 5 seconds of inactivity.
- Kpochapụ ihe ngosi: The LED screen is designed for easy viewing and reading. A thin protective film can be removed for clearer display.
2. Gịnị gụnyere
Your CONTEC CMS50M Pulse Oximeter package includes the following items:
- CONTEC CMS50M Pulse Oximeter (x1)
- Handy Carry Pouch (x1)
- Long Lanyard (Neck/Wrist Cord) (x1)
- Akwụkwọ ntuziaka onye ọrụ (x1)

Image: The CONTEC CMS50M Pulse Oximeter and its included accessories.
3. Nhazi
3.1 Ntinye batrị
The CONTEC CMS50M Pulse Oximeter requires two AAA batteries (not included in some packages). Ensure correct polarity during installation.
- Mepee mkpuchi batrị n'azụ ngwaọrụ.
- Insert two AAA batteries, matching the '+' and '-' indicators inside the compartment.
- Mechie mkpuchi batrị nke ọma.

Image: Correct battery installation for the pulse oximeter.
3.2 Removing Protective Film
A thin protective film is applied to the screen for shipping. For optimal display clarity, gently peel off this film before first use.
3.3 Ịtinye Lanyard
To attach the lanyard, thread the thin loop end through the lanyard loop hole on the device. Then, pass the thicker part of the lanyard through the thin loop and pull to secure.

Image: Instructions for attaching the neck/wrist cord.
4. Ntuziaka ọrụ
Follow these steps to take a measurement with your CONTEC CMS50M Pulse Oximeter:
- Ensure your hands are warm and free of nail polish for accurate readings.
- Mepee clip nke pulse oximeter.
- Insert one finger fully into the rubber opening of the oximeter, ensuring it rests flat on the sensor.
- Press the power button on the top of the device.
- Keep your hand still and wait a few seconds for the device to display your SpO2 and Pulse Rate readings. Movement can cause inaccurate results.
- Once readings are stable, you can remove your finger. The device will automatically power off after 5 seconds of inactivity.

Image: Step-by-step visual instructions for using the pulse oximeter.
4.1 Vidiyo nkuzi
For a visual guide on how to use the CONTEC CMS50M Pulse Oximeter, please watch the following video:
Video: Official CONTEC guide on how to use the CMS50M pulse oximeter, demonstrating battery installation and measurement steps.
5. Nlekọta
To ensure the longevity and accuracy of your pulse oximeter, follow these maintenance guidelines:
- Nhicha: Jiri akwa dị nro hichaa ngwaọrụ ahụ dampened with alcohol or a mild disinfectant. Do not immerse the device in liquid.
- Nchekwa: Store the oximeter in a cool, dry place, away from direct sunlight and extreme temperatures. If not in use for an extended period, remove the batteries.
- Ngbanwe batrị: Dochie batrị mgbe ihe ngosi batrị dị ala pụtara na ngosipụta ahụ.
- Nyocha: Lelee ngwaọrụ ahụ mgbe niile maka akara ọ bụla nke mmebi ma ọ bụ eyi.
6. Nchọpụta nsogbu
If you encounter issues with your pulse oximeter, consider the following:
- Enweghị Ngosipụta/Ngwaọrụ Anaghị Agbanwu: Check if batteries are installed correctly with the right polarity. Replace batteries if they are low or depleted.
- Ọgụgụ na-ezighi ezi: Ensure your finger is fully inserted into the device and remains still during measurement. Avoid nail polish, cold fingers, or excessive movement.
- "Finger Out" or Error Message: Reinsert your finger properly. If the issue persists, ensure the sensor area is clean.
- Nkịtị Dị nro: The device is designed to fit a range of finger sizes. Ensure your finger is positioned centrally.
If problems persist after attempting these troubleshooting steps, please contact customer support.
7. Nkọwapụta
| Nkọwapụta | Uru |
|---|---|
| Ụdị | CONTEC |
| Nọmba nlereanya | CMS50M |
| Agba | Nwa |
| Measuring Range (SpO2) | 0% ~ 100% |
| Measuring Range (PR) | 30bpm ~ 250bpm |
| Ndụ batrị | Awa 26 |
| Akụkụ ihe (L x W x H) | 2.24"L x 1.34"W x 1.22"H |
| Isi Iyi Ike | 2 x AAA Batteries (not always included) |
8. Ozi nchekwa dị mkpa
Ịdọ aka ná ntị: Pulse oximeters provide an estimated oxygen saturation level. Research and safety communications indicate that certain physical traits, such as darker skin pigmentation and melanin, may cause the estimated oxygen level to appear higher than the actual value. Users are strongly recommended to establish a baseline value when healthy and at rest. It is advised to consult a licensed healthcare provider or professional on how to interpret user readings based on individual physical traits or characteristics.
This device is intended for sports and aviation use only and is not a medical device. It is not intended for continuous monitoring.
9. Akwụkwọ ikike na nkwado
For warranty information or technical support, please refer to the documentation included with your product or visit the official CONTEC websaịtị. Debe akwụkwọ nnata ịzụrụ maka akwụkwọ ikike.