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Sold by: FaceLake
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® FL400 Pulse Oximeter with Carrying Case, Batteries, Neck/Wrist Cord - Black

4.6 4.6 out of 5 stars 12,015 ratings

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Purchase options and add-ons

Brand FaceLake
Color Black
Number of Batteries 2 AAA batteries required. (included)
Battery Life 30 Hours
Are Batteries Included Yes

About this item

  • NOTE : The manufacturer has updated the battery installation method. Refer battery slot direction which is already indicated while battery installation.
  • Determine your SPO2 and Pulse Rate in 10 seconds or less displayed on its large digital red LED display.
  • SPORT/HEALTH ENTHUSIASTS - For sports enthusiasts like mountain climbers, skiers, bikers or any sports enthusiasts interested in measuring their SPO2 and pulse rate.
  • Included: 2 AAA Batteries, FREE Carrying Case, Lanyard, User manual, Machine and our Full One-Year Warranty
  • NOTE: This device is for Sports & Aviation use only and is not a medical device.

Additional Details

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$14.95
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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Package Dimensions ‏ : ‎ 4.57 x 2.87 x 1.75 inches; 3.21 ounces
  • Item model number ‏ : ‎ fl400-black
  • Batteries ‏ : ‎ 2 AAA batteries required. (included)
  • Date First Available ‏ : ‎ December 27, 2016
  • Manufacturer ‏ : ‎ FaceLake
  • ASIN ‏ : ‎ B01MQY43YD
  • Customer Reviews:
    4.6 4.6 out of 5 stars 12,015 ratings

Product Description

Facelake 400 Pulse Oximeter Blood Oxygen SPO2 Monitor Screen Display Adults Kids Case Batteries

Your blood-oxygen levels are seconds away!

The FL400 Black registers a constant reading in several seconds (24sec. for the most accuracy) and is able to provide quick information regarding your blood oxygen levels.

Getting a reading is simple:

  1. Place finger in device and press power button.
  2. After scanning, a reading will be displayed; the left number is the SPO2 (blood oxygen saturation) level and the right number is the pulse rate.

Facelake 400 Pulse Oximeter Blood Oxygen SPO2 Monitor Screen Display Adults Kids Case Batteries

Facelake 400 Pulse Oximeter Blood Oxygen SPO2 Monitor Screen Display Adults Kids Case Batteries

Facelake 400 Pulse Oximeter Blood Oxygen SPO2 Monitor Screen Display Adults Kids Case Batteries

Accurate Reading

The FL400 Black's new and updated technology allows reading to be quick precise.

  • The user's finger must be placed in with the button pressed to turn on and measure.
  • The device measures radial pulse. The BPM range is 30-240BPM.

Easy Battery Removal

Convenience is key and the FL400 Black is no exception to this.

  • Battery cover is sturdy and easy to remove for battery replacement.
  • There is a light indicator for low battery on the face of the device.

Ergonomic Design

Lightweight materials and compact structure make the FL400 Black an easy device to take on the go.

  • Device is for all ages, but fingers that are too small show mixed results
  • Device adjusts for small to large fingers.

Facelake 400 Pulse Oximeter Blood Oxygen SPO2 Monitor Screen Display for Adults KidsCase Batteries

Your FL400 Black comes with:

  • AAA Batteries X2
  • Carrying Case
  • Lanyard

Device specifications are listed as:

  • Batteries must be facing in opposite direction to function.
  • Dimensions: 2.25” x 1.20” x 1.25"
  • Operating temperature 5°C to 40°C
  • Operating humidity 15-80% RH

This device is for sports and aviation use only, it is not a medical device. Sold and distributed in the US. Instructions only provided in English.

Frequently Asked Questions

Does this read blood pressure? This does not read blood pressure. The FL-400 reads your SPO2 and pulse rate (heartbeat).
What is the max heart rate? The BPM range for the FL400 IS 30-240BPM.
Can I run with this on? It is not recommended for running since it hangs on your finger.
Can children use the device? The FL-400 works with all ages but users with smaller fingers may face difficulties.
Help! My device won’t turn on. The device’s battery configuration is misleading; the batteries should be inserted following the ‘+’ and ‘-’ on the bottom of the battery input area with the positive end of one of the batteries pointing to the spring.

Looking for specific info?

Customer reviews

4.6 out of 5 stars
4.6 out of 5
12,015 global ratings

Customers say

Customers like the portability, performance, and ease of setup of the blood oxygen monitor. For example, they mention it's compact, works well, and is practical for everyday use. Some are happy with appearance. That said, opinions are mixed on accuracy and quality.

AI-generated from the text of customer reviews

284 customers mention240 positive44 negative

Customers like the performance of the blood oxygen monitor. They say it works well, is accurate, and is practical for everyday use. Customers also mention that it's affordable and a nice tool for assessment.

"Works well and fast. Delivery was next day. Good price." Read more

"...For the price it is a nice tool for assessment. The quality is on par with the price. It works and is accurate...." Read more

"It is used to monitor oxygen levels. Works well." Read more

"It works great! I got as a backup to put in my car first aid kit...." Read more

161 customers mention127 positive34 negative

Customers find the blood oxygen monitor easy to use and understand. They say it's a quick and accurate way to check how alive you are. Customers also mention that the battery is easy to install and that it came ready to work straight out of the box. They appreciate the big numbers and the consistent readings.

"Easy to use. Nice quality. Exactly what I needed. Would recommend." Read more

"...It's very easy to use and very easy to read...." Read more

"...Simple and straight forward. Hope this review is helpful." Read more

"This neat little oximeter was the right size, easy to use and understand. In this pandemic times it’s a must have! I love it." Read more

29 customers mention29 positive0 negative

Customers find the blood oxygen monitor portable and easy to use. They say it's compact, comes with some accessories, and can be kept in a small case. Customers also mention that it'll fit in purses and around their necks. They also say it does its job and is easy to take with you.

"This neat little oximeter was the right size, easy to use and understand. In this pandemic times it’s a must have! I love it." Read more

"...It has a little compact case and he has it with him at all times. I would highly recommend it for other families as well...." Read more

"...Easy to use, portable and brings a small case to carry around. Fully recommended." Read more

"Very easy to use and small." Read more

26 customers mention22 positive4 negative

Customers like the appearance of the blood oxygen monitor. They mention that the carrying case is really nice, attractive, and has a nice cover/sleeve. Some appreciate the sleek technology and the lanyard. Overall, most are happy with the product's appearance.

"This item was pretty neat. Although it skipped around regarding various readings, the times were different and I ate food in the meantime...." Read more

"...Good peace of mind to have this device. Liked the nice cover/sleeve for it and the rope in case I wanted to wear it. Overall great value." Read more

"Fast. Accurate. Easy to read. Has a lanyard and a case. More expensive one kept telling us our O2 was 78. Returned it for this one...." Read more

"Attractive product, easy to read, and easy to use...." Read more

222 customers mention147 positive75 negative

Customers have mixed opinions about the quality of the blood oxygen monitor. Some find it easy to read and economical, while others say it's not super durable and easy to break.

"Works well and fast. Delivery was next day. Good price." Read more

"Easy to use. Nice quality. Exactly what I needed. Would recommend." Read more

"This is a $14 Pulse Ox. It performs as expected, but no frills. The reading disappears as soon as you remove it from the finger...." Read more

"...Just my opinion. Not knocking the product. It is nice for the price. Used it for my dad who had pneumonia and was sent home on oxygen...." Read more

178 customers mention116 positive62 negative

Customers are mixed about the accuracy of the blood oxygen monitor. Some mention it's the most accurate oxymeter they've ever used, and provides accurate heart rate and O2 levels. However, others say that it'll give inaccurate readings and is not very consistent.

"It is used to monitor oxygen levels. Works well." Read more

"...many have faced with Covid, this little device is quite helpful to check your oxygen levels. Simply place on the finger and turn it on...." Read more

"...The display has one nonadjustable orientation. But hey it's $14! Accuracy seems good, which is more important...." Read more

"...I was able to track my pulse accurately with this and figure out that i only need a short lasting medication. This is a great device...." Read more

18 customers mention11 positive7 negative

Customers are mixed about the battery of the blood oxygen monitor. Some mention that it comes with the AAA batteries needed to operate it, while others say that they ran out within a month. Some customers also report that the product is defective where the batteries are inserted.

"Works as expected. Came with case, lanyard and batteries. Happy with purchase." Read more

"...This small unit requires batteries. Make sure you get a small case to protect it during non use." Read more

"Came with battery, a case and neck cord. Seems accurate to me. Easy to read. All the pharmacies I checked with were out of oximeters...." Read more

"...It comes with batteries, a pouch and straps to attach and wear around your neck. The quality seems fine, I'll give an update." Read more

25 customers mention0 positive25 negative

Customers are dissatisfied with the speed of the blood oxygen monitor. They mention that it takes too long to register a reading, it's not the norm for this type of item, and it'll take a while to produce the results. Some say that it works as described, but it'd be better if it worked faster.

"...But hey it's $14! Accuracy seems good, which is more important. Slow to give a reading, compared to my $400 Nonin that just died after 11 years...." Read more

"I expected immediate calculation/reading, but it’s extremely slow and very difficult to read in sunlight...." Read more

"...Downside is it takes 10-15 seconds fora reading, and then 20-30 seconds to stabilize, so you're sure the reading is accurate...." Read more

"...Waste of time when doesn't work. Other one worked every single time and was easy to read. Don't recommend this product" Read more

FaceLake  FL400 Pulse Oximeter with Carrying Case, Batteries, Neck/Wrist Cord
5 Stars
FaceLake FL400 Pulse Oximeter with Carrying Case, Batteries, Neck/Wrist Cord
This is a must in every house nowadays, you wanna be prepareded. You pretty much just place your finger in device and press power button, your pulse rate and thats it. Simple and straight forward. Hope this review is helpful.
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