Pulse Oximeter | Best Device for Overnight Monitoring & Sleep Apnea Screening

Best pulse oximeter for overnight monitoring with 80‑hour data storage, SpO2/PR/TEMP/PI tracking, audible alarms, and CE/ISO13485 certification. Ideal for sleep apnea screening and post‑op recovery.

The Global Healthcare Medical YK-820D Pulse Oximeter is a professional‑grade, handheld device recognized as the best pulse oximeter for overnight monitoring. Featuring a 2.4‑inch color TFT display, this lightweight monitor delivers real‑time, accurate tracking of SpO₂ (oxygen saturation), PR (pulse rate), TEMP (temperature), and PI (perfusion index)—making it an essential tool for sleep apnea screening, post‑operative recovery, and continuous overnight patient observation.

Weighing just 110g and small enough to fit in your pocket, the YK‑820D combines portability with medical‑grade precision. Whether you're monitoring sleep‑related oxygen dips in patients with suspected sleep apnea, tracking recovery in post‑surgical wards, or conducting spot checks in emergency rooms, this device delivers the reliability, data storage, and alarm capabilities that clinical and home care demand.

This device is intended for professional use by trained healthcare professionals and caregivers. Not a substitute for professional medical diagnosis.

Key Features

🌙 Purpose‑Built for Overnight Monitoring & Sleep Apnea Screening

The YK‑820D is specifically designed for overnight monitoring scenarios, making it the best pulse oximeter for overnight monitoring with alarm:

• Continuous overnight tracking – Monitors SpO₂ dips reliably during sleep, critical for managing conditions like obstructive sleep apnea (OSA)

• Audible and visual alarms – Alerts to abnormal SpO₂ levels, ensuring timely intervention during overnight observation

• Long‑term data storage – Helps identify sleep‑related oxygen issues with up to 80 hours of data storage

• Compatible with analysis software – Enables in‑depth data review for healthcare professionals

🖥️ 2.4‑Inch Color TFT Display with Clear Indicators

The 2.4‑inch color TFT screen delivers vivid, easy‑to‑read data, paired with alarm, working, and battery indicators—letting caregivers quickly track oxygen levels during overnight monitoring.

• SpO₂ value – Blood oxygen saturation percentage

• PR value – Pulse rate in beats per minute

• TEMP value – Body temperature

• PI value – Perfusion Index, indicating signal strength at the measurement site

• Bar chart – Visual pulse strength indicator

• PR waveform – Real‑time plethysmographic waveform

• Alarm indicator – Visual alerts for abnormal SpO₂ levels

• Working & battery indicators – Status at a glance

🚨 3‑Level Alarm System with Sound, Text & Visual Alerts

The YK‑820D features a three‑level alarm system with sound, text, and visual alerts for abnormal SpO₂ levels. This multi‑layered alert system ensures caregivers never miss critical patient status changes, even during overnight monitoring sessions.

💾 500‑Group / 80‑Hour Data Storage & Review

The YK‑820D offers robust data management capabilities essential for overnight monitoring and sleep apnea screening:

• 500 groups of data storage – Comprehensive patient history

• 80 hours of data storage and review – Extended tracking for overnight monitoring

• Compatible analysis software – In‑depth data analysis for clinicians

• Auto‑power‑off function – Saves battery, ensuring reliability for extended overnight use

🩸 Four‑Parameter Monitoring (SpO₂, PR, TEMP, PI)

The YK‑820D supports four key metrics essential for comprehensive patient assessment:

• SpO₂ – Blood oxygen saturation (70%–99% ±2% accuracy)

• PR – Pulse rate (30–250 bpm)

• TEMP – Body temperature

• PI – Perfusion Index (0.2%–20%)

🛡️ Medical‑Grade Safety Certifications

The YK‑820D meets rigorous international safety standards, making it a trusted choice for clinical and home overnight monitoring:

• CE – European conformity

• ISO13485 – Medical device quality management

• SFDA Class Ⅱb – High safety and performance requirements

• ClassⅠ anti‑electroshock protection – Internal power supply for patient safety

• BF classification – For SpO₂ measurement

🔋 Flexible Power Options for Extended Use

• 3 × AAA batteries – Convenient and widely available

• Lithium battery option – For extended use

• Auto‑power‑off – Saves battery life

🩺 Complete Accessory Package

The YK‑820D comes fully equipped for immediate overnight monitoring:

• High‑sensitivity SpO₂ sensor – Ensures accurate readings and stable contact during sleep, avoiding disconnections that ruin data

• Durable lithium‑ion battery – For extended use

• Detailed operator's manual – Simplifies setup and operation

👶 Versatile Patient Population

The YK‑820D supports adult, pediatric, and neonatal use—perfect for surgeries, operative/anesthetic recovery, and emergency rooms.

Specifications

Applications

The YK‑820D Pulse Oximeter is suitable for:

• Sleep Apnea Screening – Continuous overnight monitoring to track SpO₂ dips

• Post‑Operative Recovery – Extended monitoring after surgery

• Operative/Anesthetic Recovery – Post‑procedure observation

• Emergency Rooms – Rapid patient assessment

• Home Healthcare – Convenient overnight monitoring without frequent clinic visits

• Adult, Pediatric & Neonatal Care – Versatile across all age groups

Why Choose the YK‑820D?

What's Included

• YK‑820D Pulse Oximeter Main Unit

• High‑Sensitivity SpO₂ Sensor

• 3 × AAA Batteries (or Lithium Battery option)

• Operator's Manual

FAQ

Q: What is the YK‑820D Pulse Oximeter?

A: The YK‑820D is a professional‑grade, handheld pulse oximeter designed for overnight monitoring and sleep apnea screening, featuring a 2.4‑inch color TFT display and SpO₂, PR, TEMP, and PI tracking with 80‑hour data storage.

Q: Is the YK‑820D suitable for sleep apnea screening?

A: Yes. The YK‑820D is recognized as the best pulse oximeter for overnight monitoring, with continuous tracking capability to monitor SpO₂ dips reliably during sleep—critical for managing conditions like obstructive sleep apnea.

Q: What parameters does the YK‑820D monitor?

A: The YK‑820D monitors SpO₂ (oxygen saturation), PR (pulse rate), TEMP (temperature), and PI (perfusion index).

Q: How much data can the YK‑820D store?

A: The YK‑820D stores up to 500 groups of data with 80 hours of data storage and review capability.

Q: Does the YK‑820D have alarm functions?

A: Yes. The YK‑820D features a three‑level alarm system with sound, text, and visual alerts for abnormal SpO₂ levels—critical for timely intervention during overnight monitoring.

Q: What safety certifications does the YK‑820D have?

A: The YK‑820D meets CE, ISO13485, and SFDA Class Ⅱb standards, with ClassⅠ anti‑electroshock protection and BF classification.

Q: What patient populations is the YK‑820D suitable for?

A: The YK‑820D supports adult, pediatric, and neonatal use.

Q: How much does the device weigh?

A: The YK‑820D weighs just 110g (net weight), making it ultra‑lightweight and portable.

Q: What is included in the package?

A: The package includes the YK‑820D main unit, high‑sensitivity SpO₂ sensor, batteries, and operator's manual.