ITEM NAME:Fingertip Pulse Oximeter, Blood Oxygen Saturation Monitor for Adults, White Product Description Description: Fingertip Pulse Oximeter, Portable LED Digital Display, Blood Oxygen Saturation Monitor for Adults Finger Pulse Oximeter for Heart Rate Measurements (White) Feature: ABS material, high quality and durable. Lightweight and easy to carry. Gravity sensor, display data in four directions. LED display, display test value and bar graph at the same time. Low battery voltage indication. Specification: Material: ABS Display mode: LED Color: White Battery: 2 X 1.5V AAA (not included) Power consumption: less than 30mA (normal) Operating temperature: 5℃ - 40℃ Storage temperature: -10℃ - 50℃C Relative humidity: 15%-80% non-condensing Blood oxygen measurement range: 0-100% (resolution is 1%) Accuracy: 70-100%,  ±2%, pulse 30-250bpm,  ±2 times per minute Pulse measurement range: 30-250 BPM (resolution 1BPM) Pulse measurement accuracy:  ±2BPM or  ±2% whichever is the maximum Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow slightly measuring deviation due to manual measurement. Included: 1 X Oximeter 1 X Manual.Relative humidity: 15%-80% non-condensing. Display mode: LED. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.