REH YK-81C Fingertip Pulse Oximeter with OLED Display, SpO2 and Pulse Rate Monitor

With a SpO2 measurement range of 70% to 99% and accuracy of ±2%, the REH YK-81C delivers clinical-grade blood oxygen saturation readings in seconds. This compact fingertip pulse oximeter pairs a dual-color OLED screen with six display modes, ensuring clear visibility from any angle. Powered by two AAA batteries, it offers approximately 20 hours of continuous monitoring, making it a reliable companion for home health tracking or on-the-go spot checks.

Overview

The REH YK-81C is a fingertip pulse oximeter designed for adults and pediatric patients with finger thickness greater than 10mm. It non-invasively measures arterial oxygen saturation (SpO2) and pulse rate (PR), displaying results on a bright OLED panel. The device automatically shuts down after 8 seconds of inactivity to conserve battery life, and a low-voltage indicator alerts you when batteries need replacement. Its ABS plastic housing is durable yet lightweight, suitable for daily use.

What stands out

• Dual-color OLED display with adjustable brightness (4 levels) and plethysmograph waveform for signal quality assessment.
• Six display modes: four directional orientations and two data formats for flexible reading.
• Wide pulse rate range from 30 to 250 bpm with accuracy of ±2 bpm or ±2%, whichever is greater.
• CE and FDA certifications ensure compliance with medical device standards.
• Automatic power-off and low battery indicator enhance energy efficiency and user convenience.

Technical details

• SpO2 measurement range: 70% – 99% (accuracy ±2% within this range; unspecified below 70%).
• Pulse rate measurement range: 30 – 250 bpm (accuracy ±2 bpm or ±2%).
• Display: dual-color OLED, 6 display modes (4 directions, 2 formats).
• Power: 2 × AAA 1.5V alkaline batteries (not included); approx. 20 hours continuous operation.
• Automatic shutdown after 8 seconds of no signal; low voltage indicator.
• Plethysmograph waveform display for perfusion index visualization.
• Operating temperature: 5°C to 40°C; storage temperature: -10°C to 50°C.
• Material: ABS plastic; suitable for finger thickness >10mm.
• Certifications: CE, FDA.

Our verdict

The REH YK-81C combines accuracy, versatility, and user-friendly features in a compact design. Its OLED screen and multiple display modes set it apart from basic models, while the plethysmograph provides confidence in measurement reliability. Ideal for home use, sports enthusiasts, and healthcare professionals seeking a dependable spot-check oximeter.