Specifications: Color: White & Blue Display Type: TFT 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 Package Size: 7 * 7 * 4cm/ 2.8 * 2.8 * 1.6in Package Weight: 41g/ 1.4oz Storage Bag Specifications: Product material: EVA Product size: 9.5 * 6 * 4cm Color: black Packing List: 1 * Oximeter 1 * Lanyard 1 * User Manual(English) Or 1 * Storage Bag Features: Fingertip pulse oximeter for simple daily checking, can be used in families, school, social care institutions, community center, etc. Intended for measuring blood oxygen saturation and pulse rate of adults or children, and you can use it for measurement before or after sports. Equipped with clear TFT screen showing SpO2 value, pulse rate (PR), pulse wave, etc. Easy to use, open the probe, then insert one finger into the probe, turn on the oximeter, after about several seconds, the measurement result can be read directly from the screen. Powered by 2pcs AAA batteries(not included), the pulse oximeter will automatically power off in 8s if there is no finger signal. Compact size and lightweight, with lanyard, convenient to carry around and use anytime anywhere. 1.Quick chek : built in acceleration sensor,using high performance acceleration sensor, the measurement time is shortened, only need 8 seconds. 2. Lightweight and portable: the product is small in size, light in weight and easy to carry. 3.Automatic shutdown function: In the state of the measurement interface, the measured finger is automatically turned off within 20s after being disconnected. Description: 1. Finger Pulse Oximeter is an economical and accurate way to detect pulse rate and oxygen saturation through your fingers. It is suitable for testing blood oxygen saturation and pulse rate in hospitals, homes, schools and medical centers.