Features for Pulse Oximeter: <br /><br />- Measure SpO2 and PR accurately<br />- LED display for SpO2 value and PR value、 bargraph display<br />- Low battery voltage indicator<br />- Automatic power off when signal is not available for 4 seconds<br />- 2 AAA batteries support 30 hours continuously<br />- Mini size、 light weight、 convenient to carry<br />- Widely used in hospital、 home healthcare、 oxygen bar、 community medical centre、 alpine area、 sports healthcare etc. Measure SpO2 and PR accurately<br />Specification for Pulse Oximeter:<br /><br />Display<br /> <br /><br />LED display<br /><br />SpO2<br /> <br /><br />Measurement range: 35??99%<br />Resolution: ??1%Accuracy: ??2% (70%??99%)、 unspecified (<70%)<br /><br />Pulse rate<br /> <br /><br />Measurement range: 30??255 bpm<br />Resolution: ??1%<br />Accuracy: ??2bpm or ??2% (select larger)<br /><br />Power<br /> <br /><br />1.5V (AAA size) <br />alkaline battery x 2<br />Supply voltage: 2.6~3.6V<br /><br />Working current<br /> <br /><br />??30mA<br /><br />Interference resistance against ambient light<br /> <br /><br />Deviation between SpO2 in nature indoor lighting condition and in dark room is less than ??1%<br /><br />Dimension & Weight<br /> <br /><br />57 (L) ?D 31(W) ?D 32(H) mm<br />50g (with batteries)<br /><br />Package Content:<br />- 1 x RPO-8C Fingertip Oximeter<br />- 1 x Lanyard<br />- 1 x English user's manual<br />- 1 x Pouch<br /><br />Note: <br /><br />We will not include batteries、 according to China law、 batteries are not allowed for international air