S01W Black/White Fingertip Pulse Oximeter Care Your Health See More Happiness Product Features ◎ 1.5 LED white light full screen, large font mode, clear and easy to read, suitable for family use. ◎ Infrared automatic detection, intelligent power saving patent technology, automatic induction measurement on startup, keyless operation, blood oxygen measurement becomes more convenient. ◎ Round design, compact and delicate, bring more interesting to your healthy life. Superior SPO2 technology Anti-drop, waterproof and dustproof design, longer service. Environmental silicone layer,comfortable to wear. Specifications Model S01W Black/White Display 1.5inch LED screen Size 61.5mm*35.5mm*34mm G.W. 58g (include battery) Battery Specifications 2 AAA batteries (size 7) Electric Shock Protection Class BF Inlet Protection Grade IP22 Measurement Parameter Sp02,PR SP02 Accuracy 70%~100%, ±2% PR Accuracy 25bpm~250bpm, ±3bpm