---
product_id: 50084494
title: "BLYL CMS 50D+ OLED USB Finger Pulse Oximeter & Heart Rate Monitor 24hr Memory, Lanyard, USB Cable, Full Analysis Software"
brand: "blyl"
price: "$3.77"
currency: USD
in_stock: false
reviews_count: 6
url: https://www.desertcart.us/products/50084494-blyl-cms-50d-oled-usb-finger-pulse-oximeter-and-heart
store_origin: US
region: United States of America
---

# BLYL CMS 50D+ OLED USB Finger Pulse Oximeter & Heart Rate Monitor 24hr Memory, Lanyard, USB Cable, Full Analysis Software

**Brand:** blyl
**Price:** $3.77
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** BLYL CMS 50D+ OLED USB Finger Pulse Oximeter & Heart Rate Monitor 24hr Memory, Lanyard, USB Cable, Full Analysis Software by blyl
- **How much does it cost?** $3.77 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/50084494-blyl-cms-50d-oled-usb-finger-pulse-oximeter-and-heart)

## Best For

- blyl enthusiasts

## Why This Product

- Trusted blyl brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Full description not available

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Part number | 0714424204325 |
| Item Weight | 160 g |
| Package Dimensions | 13.4 x 9.4 x 6.5 cm; 160 Grams |
| Batteries | 2 AAA batteries required. |
| Item model number | B01MS3GLQO |
| Colour | Blue |
| Batteries included? | No |
| Batteries Required? | No |
| Battery Cell Type | NiMH |
| Battery life | 24 Hours |

## Images

![BLYL CMS 50D+ OLED USB Finger Pulse Oximeter & Heart Rate Monitor 24hr Memory, Lanyard, USB Cable, Full Analysis Software - Image 1](https://m.media-amazon.com/images/I/71BzCOK5NmL.jpg)

## Customer Reviews

### ⭐⭐ 2.0 out of 5 stars







  
  
    I found this device exceedingly frustrating. Firstly, my ...
  

*by J***N on Reviewed in the United Kingdom on 6 November 2017*

I found this device exceedingly frustrating. Firstly, my Windows 10 PC would not recognise it. No USB driver was available on the software mini-CD. None is available on the Contec site either. If you contact Contec, they sometimes reply in chinese - I had to give them up in the end as they asked repeatedly for the device and serial and  then just ignored me. I did manage to find a driver from searching Google, but I had to try many before getting one to work.Next problem is the recording. I am not entirely sure how to ensure a recording to work. The device is heavy on batteries. If the batteries run low, I think you just lose the recording. You also appear to lose the recording if you start another recording before uploading the previous one - it doesn't keep them . So far it has been a bit hit and miss and despite ensuring full batteries and not starting another recording, I sometimes seem to end up with nothing.Not sure about the quality - with all the battery changes, the plastic may not hold up.However and finally - the device does work and if you just want to experiment a bit, it is cheap and up for the job.

### ⭐⭐⭐⭐⭐ 







  
    OK  Bien
  
  

*by R***D on Reviewed in France on 6 July 2021*

Documentation et traduction totalement à revoir

### ⭐⭐⭐⭐⭐ 







  
    Funciona
  
  

*by M***A on Reviewed in Spain on 31 May 2021*

Permite verificar a quantidade de O2 durante o sono (os dados terão de ser transferidos para o computador).

---

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---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-13*