Description: Detector Simple and convenient to operate with one button. Using advanced sensors, accurately and quickly collect data, and monitor the blood oxygen status of the human body. Large LED display ,easy to read, even for the elder. Soft and comfortable, will not oppress the tip of the finger Widely used in families, oxygen bars, sports (used before and after exercise, not recommended during exercise) and other areas. Applicable to plateau tourism and mountaineering enthusiasts, people who work more than 12 hours a day, athletes (professional sports training or sports enthusiasts) Confined environmental workers, etc. Specification: Type: Fingertip Pulse Blood Oxygen Monitor SpO2 measurement range: 70%-99%; Accuracy: ±2% (70%-99%, ≤70% no definition) Pulse rate measurement range: 30BPM-240BPM; Accuracy: ±1BPM or ±1% of the measured value(The larger value shall prevail) Dimensions: 62mm x 32mm x 33mm/2.44 x 1.26 x 1.3inch Power: 2x AAA Batteries Required (Not Included) Automatic shutdown: automatic shutdown for 8 seconds without finger insertion Working Environment Requirements：Temperature: 5-40℃. Storage humidity: 15%~80% when working, 10%~80% storage Operation Instruction： 1. Press the power button on front panel to turn the Oximeter on. 2. Place one of your finger into the hole. 3. Read the data from the display screen when the data is stable. 4. The device will power off automatically when finger is removed. Package Includes: 1 Piece Black Pulse Oximeter with 1 Piece English User Manual 1 Piece White Pulse Oximeter with 1 Piece English User Manual 1 Piece Golden Pulse Oximeter with 1 Piece English User Manual Note: Please allow 1-3mm differs due to manual measurement.