Features: <br />-CE &FDA approved<br />- Measure SpO2 and PR accurately<br />- Color OLED display SpO2 and PR、 Pulse waveform and bargraph display<br />- High brightness full color OLED can be used even in dark night<br />- Four viewing angles and six display modes<br />- Four levels adjustable brightness<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.  <br />Specification: <br />Display  64K color OLED  <br />SpO2  Measurement range: 35-99%<br />Resolution: ・1%Accuracy: ・2% (70%-99%)、 unspecified (<70%)  <br />Pulse rate  Measurement range: 30-255 bpm<br />Resolution: ・1%<br />Accuracy: ・2bpm or ・2% (select larger)  <br />Power 1.5V (AAA size) <br />alkaline battery x 2<br />Supply voltage: 2.6~3.6V  <br />Working current  ・30mA  <br />Interference resistance against ambient light  Deviation between SpO2 in nature indoor lighting condition and in dark room is less than ・1%  <br />Dimension & Weight  57 (L) ゛ 31(W) ゛ 32(H) mm<br />50g (with batteries)  <br /><br />Package Content:<br />- 1 x Fingertip Oximeter <br />- 1 x Lanyard<br />- 1 x English user's manual<br /> <br />We will carefully test every item before shipment.