Features: <br />- Reliable accuracy and durability<br />- Two Color OLED Display， four display modes.<br />- 4-Direction Display adjustable.<br />- Low voltage indicator， Real-time spot-checks.<br />- Low power consumption，50 hours continuous to work.<br />- Low Perfusion ≤0.4%<br />- Automatic power off when no signal<br />- Small and light weight， convenient to carry<br />- Widely used in hospital， home healthcare， oxygen bar， community medical centre， alpine area， sports healthcare etc.<br />Measurement range: 70～99%<br />Resolution: ±1%<br />Accuracy: ±2% (70%～99%)， unspecified (<70%)<br /><br />Pulse rate<br /><br /><br /><br />Measurement range: 30～240 bpm<br />Resolution: ±1%<br />Accuracy: ±2bpm or ±2% (select larger) <br />Low Perfusion ≤0.4%<br /><br />Power<br /><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 />≤30mA<br /><br />Automatic power-off<br /><br />Automatically power off when no signal in the oximeter for more than 8 seconds<br /><br />Dimension & Weight<br /><br />130 (L) × 100(W) ×60(H) mm<br />65g(without batteries)<br /><br />Optional Color:<br /><br />- Pink<br /><br />- Blue<br /><br />- Light Purple<br /><br />- Green<br /><br />- Gray<br /><br /><br />Package Content:<br />- 1 x RPO-8A Fingertip Oximeter<br />- 1 x Lanyard<br />- 1 x English user's manual