Zacurate 500E-B Wireless Bluetooth Fingertip Blood Pulse Oximeter Monitor with FREE App, SpO2, Heart Rate, Plethysmograph, and Perfusion Index Finger Oxygen Sensor Meter

Price: $39.99
(as of Feb 15, 2026 18:47:50 UTC – Details)

Product description

1 Multi-directional Display

2 Portable

3 Adjustable Brightness

1 Step 1

2 Step 2

3 Step 3

4 Step 4

How does the plethysmograph work?

Each wave (see image) corresponds to a heartbeat and the wave amplitude corresponds to the amount of blood detected. If the wave amplitude is low, this means that your blood perfusion is too low for a reliable read. You should retake your measurement and make sure that your finger is positioned right under the LED lights.

Zacurate Pulse Oximeter

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Customer Reviews

4.4 out of 5 stars 1,373

4.6 out of 5 stars 239,942

4.6 out of 5 stars 239,942

4.6 out of 5 stars 1,661

4.6 out of 5 stars 122,924

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Price

$39.99$39.99

$19.54$19.54

$29.74$29.74

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$9.99$9.99

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Maximum SpO2 Displayed

100%

100%

100%

100%

99%

100%

Infrared Shield

✔

✔

✔

✔

✔

✔

OLED

✔

✘

✔

✔

✘

✔

Battery Life

30hrs

30hrs

30hrs

30hrs

30hrs

30hrs

Plethysmograph

✔

✘

✔

✔

✘

✔

Sound and Alarm Function

✘

✘

✔

✘

✘

✘

Accuracy deviation

+/- 1%

+/- 2%

+/- 2%

+/- 1%

+/- 2%

+/- 2%

Recommended Finger Size

Adult

Adult

Adult

Adult

Adult

Child

Recommended Age

>12 Years Old

>12 Years Old

>12 Years Old

>12 Years Old

>12 Years Old

>12 Years Old

Can I check my readings while I am exercising?

Any movement can cause the device to reset its readings. If you are in the middle of exercising, we advise to take readings during resting phases while the body is not mobile. If you have finished, wait 10-15 minutes before taking a reading.

What is the SpO2 and pulse rate range the pulse oximeter can register?

The digital pulse oximeter is able to measure SpO2 between 70% and100%, and pulse rate between 30 and 250 beats per minute (bpm).

Can the 500E-B Pulse Oximeter be used on children?

Yes. However we recommend our children pulse oximeter instead – specifically designed for smaller fingers. The larger finger chamber of the 500E-B may be too big for children with small fingers, affecting its accuracy.

How do I know the battery is low?

The battery icon will display the low power indicator. Please replace the batteries.

Why does the reading fluctuate and why is the reading different on different fingers?

It is normal and natural for your SpO2 and pulse rate to fluctuate as the amount of arterial blood pulses and changes with each heartbeat. A ±3 fluctuation in your SpO2 is considered normal.

Product Dimensions ‏ : ‎ 2.25 x 1.25 x 1.35 inches; 3.5 ounces
Item model number ‏ : ‎ 500E-B
Batteries ‏ : ‎ 2 AAA batteries required. (included)
Date First Available ‏ : ‎ February 19, 2019
Manufacturer ‏ : ‎ Zacurate
ASIN ‏ : ‎ B07BLJTQTZ
Best Sellers Rank: #96,673 in Health & Household (See Top 100 in Health & Household) #84 in Athletic & Aviation Pulse Oximeters
Customer Reviews: 4.4 4.4 out of 5 stars (1,373) 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); } }); });
Advanced Features Through Smart App Integration – The Zacurate 500E-B Bluetooth Pulse Oximeter is the latest innovation in the Zacurate line, incorporating several advanced features into one. Paired with our free Smart APP- ‘Beyond Oximeter’ ( IOS and Android compatible), it facilitates effortless real-time monitoring and recording of SpO2, pulse rate, and pulse strength. It supports multiple users and enables data storage over time.
Accurate And Reliable – The advanced infrared sensor and OLED color display guarantee accurate measurement of SpO2 and pulse rate even under conditions of low blood perfusion, ensuring reliable readings in any environment.
Patented Multi-Directional Display – Choose from 6 different layout options for convenient viewing of your blood oxygen level and pulse measurement. At the push of a button, switch the OLED display from facing the user to another layout facing your caregiver.
Sports Enthusiasts, Aviation Or Home Use – Ideal for climbers, skiers, bikers, aviators, and on-the-go SpO2 and pulse rate tracking. Use pre- or post- exercise, remaining still during measurement. *Not designed for continuous overnight monitoring/recording.
18 Months Manufacturer Warranty & Fully Loaded With Accessories – The device comes equipped with 2 AAA batteries, a silicone cover for protection against dirt and damage, and a lanyard for added convenience. Additionally, it is the only pulse oximeter in the Zacurate line to offer an 18-month manufacturer’s warranty.