Finger Pulse Oximeter And Heart Rate

https://www.youtube.com/watch?v=jRSssbwsrtk https://www.youtube.com/watch?v=vh7flNyZdQA Specifications: Color: Black & Blue Display Type: OLED/TFT/LED display SpO2 Declared Accuracy: 70%-99%, ±2% on the stage of 80%-99%,±3% on the stage of 70%-79% PR Declared Accuracy: 30-240bpm, ±1bpm Power Supply: 2 * AAA batteries(not included) Operation Temperature: 5℃-40℃ Operation Humidity: 15%-80% Atmospheric Pressure: 70kPa-106kPa Item Size: 6 * 3.2 * 3.2cm / 2.4 * 1.3 * 1.3in Item Weight: 25g / 0.88oz What's included: - 1 x Fingertip Oximeter (without battery) - 1 x Lanyard - 1 x English user manual - 1 x Retail Box ACCURATE & RELIABLE Fingertip Pulse Oximeter can accurately determine your SpO2 (blood oxygen saturation levels) and PR (pulse rate) after clinical and professional tests, Fast SpO2 readings, pulse measurements and display it conveniently on a large digital bright OLED display.