Features:<br />Lightweight for carrying and easy to use.<br />Manually adjust the direction of interface.<br />LED display，simultaneous display for testing value and bargraph.<br />Low battery voltage indicator.<br />Automatically standby or sleep.<br />The display interface of "LED”can rotate two direction after pressing the key for less than 0.5s.<br />This product is suitable for the hospital，oxygen bar，sport health (using them before or after <br />sport，do not advising using them during the movement)，and community health care，etc.<br /><br />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℃~40℃<br />Storage  Temperature: -10℃~50℃<br />Relative  Humidity: 15%~80% non-condensing<br />Power: 2×AAA1.5V Battery<br />Dimensions: 57mm(L)×31mm(W)×30.5mmD)<br /><br />Package Content: <br />1 x Fingertip Oximeter<br />1 x Lanyard<br />1 x English user's manual