How do I clear the memory once it is full? I have uploaded the data to my phone already.

Once downloaded there is a "dustbin" symbol in the top right of your phone screen to delete the data from the Oximeter

Can results be put on laptop? I have no mobile phone. Also can it be used as a one off for quick oxygen test?

No, as per the information in the description, it's only compatible with Android or iPhone. As for a "quick oxygen test" why would you do that? You would want a fair bit of data over time to average out the readings, because your SPO2 does fluctuate. A quick reading might give unnecessary concern, if it's dipped to say 92% briefly but gone back up to say 98% - this info was relayed to me by NHS 111. You can just as easily buy a cheap oximeter and get the readings from the actual device then write them down. Always work with your healthcare professional. Hope this helps.

How well does this attach to your finger during sleep?

It has rubber inside and fits and stays on finger during sleep. It stays very well and doesn't hurt.

Only getting 6 hours recording on one set of batteries, 8 hours on another set. Says 24 hr Continuous recording? I must have a faulty unit.

I managed to get three 8 hour recordings from one set of batteries.

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EMAY Sleep Pulse Oximeter with Built-in Recording Capability | Record Continuous Blood Oxygen Levels & Pulse Rate Overnight | Provides Sleep Report & Raw Data

Product ID: 752837620

Details

Battery life
40 Hours
Brand
EMAY
Measuring range
75-100 mmHg
Model name
EMO-80
Number of batteries
2 AAA

⏳40-hour continuous recording

📊Second-by-second data export

🔋10 nights battery life on 2 AAA

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Rp2479148

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Description

💤 Sleep Smarter, Live Healthier — Your Nightly Oxygen Guardian

RELIABLE READY - Includes 2 AAA batteries (lasting ~10 nights), secure overnight fit, and customizable alarm to catch critical drops.
OVERNIGHT DATA MASTERY - Record up to 40 hours of uninterrupted blood oxygen & pulse rate data—no real-time app needed.
CLEAR ROTATING DISPLAY - Large digital LCD screen rotates for easy viewing—no awkward neck twists during measurement.
EFFORTLESS SYNC SHARE - Sync your data each morning with a single tap and export reports in PDF or CSV to impress your doctor.
PRO LEVEL SLEEP INSIGHTS - Access detailed, professional-grade sleep reports and trend graphs via free iOS/Android app.

The EMAY Sleep Pulse Oximeter is a professional-grade biometric monitor designed for continuous overnight tracking of blood oxygen saturation and pulse rate. With up to 40 hours of onboard memory, it records second-by-second data without needing a constant app connection. Its large rotating LCD display ensures easy reading, while the free companion app delivers detailed sleep reports and exportable raw data for medical consultations. Powered by 2 AAA batteries lasting about 10 nights, this device combines accuracy, convenience, and actionable insights to empower proactive health management.

Specifications

ASIN	B07RKVDHXH
Are batteries included?	Yes
Battery Life	40 Hours
Best Sellers Rank	16,554 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 23 in Oximeters
Brand Name	EMAY
Country of Origin	China
Customer Reviews	4.5 4.5 out of 5 stars (2,946)
Item Weight	0.01 Kilograms
Manufacturer	EMAY
Measuring Range	75-100 mmHg
Model Name	EMO-80
Model Number	EMO-80
Number of Batteries	2 AAA batteries required. (included)
Part Number	EMO-80
UPC	797550113181

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Rp2479148

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In stock

Sold byAmazon IndonesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Indonesia.

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