mibest OLED Finger Pulse Oximeter, O2 Meter, Dual Color White/Black

Additional Details from the Manufacturer

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More features

• 【Accurate and Reliable】Mibest Pulse Oximeter accurately determine your SpO2 (blood oxygen saturation levels) and pulse rate and strength in 4 directions, 6 display modes, and 10 levels of adjustable brightness.
• 【Plethysmography Waveform】The SpO2 Waveform measures the change in the volume of arterial blood with each pulse beat which helps determine the optimal time to take a reading.
• 【Compact and Long Battery Life】Oxygen saturation finger monitor is light weight, easy to carry, and accommodates wide range of finger sizes. 40 hours battery life and automatic power off in 8 seconds.
• 【Out of Box Ready】Our portable oxygen saturation machine comes with Instruction manual, 2 AAA alkaline batteries, Neck lanyard (detachable and adjustable length) you'll be ready to use your portable oxygen sensor right out of the box.
• 【Sport Enthusiasts】This device is for Sports and Aviation use only and not intended for medical use. It's great for mountain climbers, bikers, trainers, skiers, aviators, and general sport enthusiasts to spot check SpO2 on the fly.