Fingertip Pulse Oximeter for children uses cartoon appearance design reducing the fear of children Small size and lightweight design will not cause too much pressure on children's fingers OLED screen 4-direction display Pule bar Plethysmogram Parameters; SpO2 PR Low battery prompt Takes 2 AAA batteries (included) 49mm L x 28mm W x 28mm H Weight 35g (<2 oz) Pediatric pulse oximeter can be used on the finger thickness between 9mm - 22mm Can be used on children who are 2 years or older
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