My-C013 Medical Color OLED Display SpO2, Pulse Rate Fingertip Pulse Oximeter

Features
·Two parameters:SPO2, Pulse Rate.
·Waveforms:SpO2 Waveform
·COLOR OLED display, four direction adjustable 
·SpO2 and pulse monitoring, and Waveform display 
·Low-power consumption, continuously work for 50 hours 
·Small in size, light in weight, and convenient to carry 
· Low voltage alarm display, Auto power-off 
·Runs on standard AAA batteries
Detailed descriptions of product functions:
SPO2:
·Measurement range: 70%-99%
·Accuracy: ±2% on the stage of 70%-99%, unspecified(<70%) for SPO2
·Resolution: ±1%
·Low perfusion: <0.4%
PR:
·Measurement: range:30BPM-240BPM
·Accuracy: ±1BPM or ±1%(the larger one)
·Power: two AAA 1.5V alkaline batteries
·Power consumption: below 30mA
·Automatic power-off: the product shuts down automatically after no signal for 8 seconds
·Dimension: 62mm*32mm*33mm
·Operation environment:
·Operation temperature: 5ºC-40ºC
·storage temperature: -10ºC-40ºC
·Ambient humidity: 15%-80% on operation, 10%-80% in storage
·Air pressure: 70kPa-106kPa