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Easy-to-Read
OLED Display Large bright numbers for quick viewing day or night
Fast Results
Get SpO2 and pulse readings in as little as 8 seconds
4-Way Display
View readings from multiple directions for added convenience
Portable Design
Compact size fits easily into pockets, backpacks, and gym bags
Ready to Use
Includes batteries, carrying case, lanyard, and user manual
Auto Power
Off Helps extend battery life when not in use
Insert Finger
Press Power Button
Wait For Reading
View SpO2 & Pulse Rate
Get Started in Seconds
1 Step (1) 2 Step (2) 3 Step (3) 4 Step (4)
Perfect For Active Lifestyles 
Hiking
Spot-check oxygen levels at higher elevations

Cycling
Monitor oxygen saturation during endurance activities

Aviation
Ideal for pilots and aviation enthusiasts

Fitness & Sports
Great for athletes and active individuals
Everything You Need Included
Ready to use right out of the box. No additional accessories required.

What is the normal range of SpO2?
The normal range for SpO2 is typically considered from 95% to 99%. The SpO2 measurement may be lower for people who live at high altitudes. Your doctor will be in the best position to advice where your readings should be.
What kind of conditions may cause an inaccurate reading?
Cold hands, poor circulation, very weak pulse, movement, fingernail polish and acrylic nails may cause inaccurate results.
The SpO2 is not changing, is it stuck?
SpO2 does not change like pulse rate. It is slow to change.
What is the normal range for pulse rate?
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.
Why are the springs in the battery compartment on the same side?
Make sure to follow the plus/minus signs engraved on the battery casing and not follow the direction of the springs.
Product Dimensions : 2.5 x 1.2 x 1.15 inches; 2.89 ounces
Item model number : MD300CN340
Batteries : 2 AAA batteries required. (included)
Date First Available : February 19, 2019
Manufacturer : mibest
ASIN : B07NZST4JB
Best Sellers Rank: #33,760 in Health & Household (See Top 100 in Health & Household) #20 in Athletic & Aviation Pulse Oximeters
Customer Reviews: 4.7 4.7 out of 5 stars (21,186) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
【FAST & ACCURATE READINGS】Quickly measure blood oxygen saturation (SpO2), pulse rate, and pulse strength in seconds. Features 4 display directions, 6 display modes, and 10 adjustable brightness levels for clear, easy-to-read results.
【BRIGHT OLED DISPLAY】Large dual-color OLED screen displays SpO2, pulse rate, pulse bar graph, and battery status with exceptional clarity. Adjustable brightness helps ensure comfortable viewing in different lighting conditions.
【COMPACT, LIGHTWEIGHT & PORTABLE】Designed for everyday carry, this lightweight fingertip pulse oximeter fits a wide range of finger sizes and easily slips into a pocket, backpack, gym bag, or flight bag.
【READY TO USE RIGHT OUT OF THE BOX】Includes 2 AAA batteries, carrying case, detachable lanyard, and user manual so you can start checking oxygen saturation levels immediately without additional accessories.
【IDEAL FOR SPORTS & AVIATION USE】Perfect for climbers, hikers, cyclists, runners, skiers, pilots, and fitness enthusiasts who want to quickly spot-check oxygen saturation and pulse rate while on the go. Not intended for medical use.

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