As Precise as Specialized Medical Apparatus More Accurate & Durable This pulse oximeter uses medical-grade sensors and chips, providing measurement results consistent with those of professional instruments used in hospitals. Additionally, this pulse oximeter fingertip is made from advanced materials and manufacturing processes. It has undergone numerous tests, including high drops and repeated water immersion, and still functions properly. Seeing is Believing Please refer to the comparison demonstration with professional medical testing instruments and the destructive testing demonstration in the introduction video of this pulse oximeter on the Webpage. Industrial-Grade Reliability This oximeter is manufactured using industrial-grade materials and processes, ensuring exceptional durability. It has been tested for resilience against drops from heights, water immersion, and extreme temperatures, yet it continues to function properly.Please refer to the durability test demonstration video in the introduction video of this oximeter. Specifications SpO2 Range: 0%-100% SpO2 Accuracy: ±2% Pulse Rate Range: 30bpm-250bpm Pulse Rate Accuracy: ±2bpm Perfusion Index: 0.1% - 10% Display Format: 2-color OLED Display Continuous Monitoring & One-Key Setup This pulse oximeter features a special spring-clip design combined with internal medical grade silicone material, ensuring it stays in place. The oximeter can continuously monitor blood oxygen levels and heart rate during exercise or while sleeping.This oximeter only requires one button to set the blood oxygen/heart rate alarm thresholds. Setup Method: Press the fingertip button on the oximeter to turn it on, then long-press the button for 2 seconds to enter the settings page. Important Note: Long-press for 2 seconds to go to the next page or make a setting; short-press to move to the next item. Larger & Brighter Screen The blood oxygen saturation monitor features a 1.2-inch OLED display, larger than other 0.9-inch screens, with higher brightness and more vivid colors, ensuring that the elderly can easily read measurement data. Alarm Function This pulse oximeter allows you to set alarm values for blood oxygen and heart rate. It will emit an alarm if the heart rate or blood oxygen levels are abnormal during exercise or sleep. It can be used for continuous monitoring during exercise or while sleeping. For Children The package includes a pulse oximeter, carrying case, two batteries (please refer to the positive and negative indicators for correct battery installation), lanyard, and user manual. Protable Carrying Case to protect the finger oximeter from damage and dirt, a LANYARD for convenience. Cautions in Use The oximeter can be used before or after doing sports.Fingernails up measurement. Nail polish will affect the accuracy of the reading.The most accurate value of blood oxygen, when the wave amplitude is consistent and PI value is higher than 0.2%,The two batteries are installed in the same direction. Make sure that the batteries are installed correctly.The oximeter used for home, sports and aviation.The power button used for turn on/off or setting the oximeter. Fingertip Pulse Oximeter with Plethysmograph and Perfusion Index, include car... Pulse Oximeter, OLED Display Oxygen Monitor Fingertip, Blood Oxygen Saturatio... Pulse Oximeter, OLED Display Oxygen Monitor Fingertip, Blood Oxygen Saturatio... Pulse Oximeter, OLED Display Oxygen Monitor Fingertip, Blood Oxygen Saturatio... Pediatric Pulse Oximeter, OLED Display Oxygen Monitor Fingertip for Children,... Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.6 out of 5 stars 2,931 4.6 out of 5 stars 8,526 4.7 out of 5 stars 7,203 4.7 out of 5 stars 7,203 4.1 out of 5 stars 111 Price $31.99$31.99 $29.99$29.99 $29.99$29.99 $29.99$29.99 $29.99$29.99 Larger OLED Screen ✓ ✓ ✓ ✓ ✓ Design of Patented Spring Clamp ✓ no data ✓ ✓ ✓ Alarm Function ✓ ✓ ✓ ✓ ✓ Brightness Adjustable ✓ no data ✓ ✓ ✓ Silicone Cover no data no data ✓ ✓ no data One-Key Setup no data ✓ ✓ ✓ ✓ Batteries Include ✓ ✓ ✓ ✓ ✓