Features for Fingertip Pulse Oximeter: 
<br />
<br />- Ergonomic design, special for children
<br />- Comfortable for wearing
<br />- Measure SpO2 and PR accurately
<br />- LCD display SpO2 and PR, Pulse waveform and bargraph display
<br />- Alarm function: Detected data going beyond limit alarm (when the SpO2 is below 90%,or the pulse rate is not between 50bpm and 120bpm, the alarm occurs); Low power alarm
<br />- Rechargeable button lithium battery
<br />- High brightness 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 />- Mini size, light weight, convenient to carry