Finger Pulse Oximeter Features: Algorithm inside for accuracy. Anti-Movement for stability. 6 display modes. Low perfusion: 0.3%. Colour OLED display. Visual and sound alarm. Alarm value can be adjusted. cute design for Child use who above 2 years old. Standard two AAA 1.5V Alkaline Bаttеrу support more than 20 hours. continuous work. *This product image is only for reference.
