Specification:
<br />Hemoglobin saturation display 35~100%
<br />Pulse rate display 25~250BPM
<br />Resolution Hemoglobin saturation:1%
<br />           Pulse rate:1 BPM
<br />           Hemoglobin saturation:2%(80%~100%)
<br />Measure Accuracy 3%£¨70%~80%£©
<br />                 Pulse rate:2 BPM
<br />Operation Temperature 5¡æ~40¡æ
<br />Storage  Temperature -10¡æ~50¡æ
<br />Relative  Humidity 15%~80% non-condensing
<br />Power 2¡ÁAAA1.5V Battery
<br />Dimensions 57mm(L)¡Á31mm(W)¡Á30.5mmD)
<br />
<br />Package Content: 
<br />1 x Fingertip Oximeter
<br />1 x Lanyard
<br />1 x English user's manual