Features:

1.Display mode: LED display
2.SPO2 measuring range:35%-100%
3.Pulse rate measuring range:30bpm-240bpm
4.Pulse waveform display: bargraph display
5.Low battery indication: LED display
6.Power supply Requirement: 1.5V(AAAsize) Alkaline Batteries×2;
7.Working current:≤25mA
8.Resolution: SPO2 : 1% Pulse Rate: 1bpm
9.Accuracy: SPO2 :70%to100%±2digits,below70%unspecified Pulse rate:±2bpm or±2%(select larger)
10.Measurement at Low Perfusion: The v of SPO2 and pulse rate can be displayed properly when pulse saturation is at 0.4%.
11.Accuracy of SPO2:±4%
12.Accuracy of Pulse Ratio.±2BPM or ±2% (Select Larger)
13.Resistance to surrounding light:
Deviation is smaller than ±1% between value of Oxyhemoglobin measured in natural lighting indoor condition and present lighting sources and that measured in dark room.
14.Automatic shutdown function:The device will power off automatically within 5 seconds when there is no finger in the device.