Specifications: Size: 36(L)x58(W)x33(H)mm Battery: 2 x AAA batteries (not included) Working voltage: DC 3V Battery life: about 20 hours Low voltage indicator Working Current: ≤ 30mA SPO2: Measurement Range: 70-99% Resolution: 1% Accuracy: +/- 2% (70%-99%), unspecified ( Pulse Rate: Measurement Range: 30-240bpm Resolution: 1bpm Accuracy: +/- 1bpm or +/- 1% (which is greater) Feature: Compact design, lightweight for convenient to carry Can be used in hospital, home, community medical treatment, sports healthcare, etc Automatically power off in 8 seconds when there is no signal ATTENTION: 1.When you turn it on,just press the button one time.Don't press it for long time,otherwise ,it will enter into the setting mode which can not measure 2.Please use the index finger when measure.And put the index finger on the side of the head of the probe 3.It will be ok when you have measured for 3 seconds
