Colour LED Display Pulse Oximeter with Pulse, Heart Rate & Blood Oxygen function

Features:
Colour LED display is a painless and non-invasive device, which shows you:
Blood oxygen saturation or SpO2 level: it shows the percentage of haemoglobin carrying oxygen in the blood. The normal level is 95% or higher and the power consumption is low. It can work continuously for 24 hours.
Display range of blood oxygen value: 70-100% pulse rate value - display range: 30-240 BPM
Resolution: blood oxygen saturation 1%, pulse 1bpm
Accuracy: the 70% - 100% segment of blood oxygen saturation is ± 1%, less than 70%, undefined, and the pulse rate is ± 2bpm or ± 1%, whichever is higher
Anti environment light intensity, weak perfusion
Display format: liquid crystal display: blood oxygen saturation display: 70-100%, four directions, eight modes (upper, lower, left and right fonts respectively)
Three step operation is simple and fast
Remove the back cover and install the two AAA batteries.
Point your finger at the red light, insert it and wait for the oximeter to turn on.
Read the results in 8 to 10 seconds.
Immediate and accurate results (seconds)

Specifications:
Project: pulse oximeter
Haemoglobin saturation display: 35-100%
Pulse rate display: 25-250 BPM
Resolving power:
Haemoglobin saturation: 1%
Pulse: 1 BPM
Perfusion index: 0.1%
Measurement accuracy:
Haemoglobin saturation: 2% (80% - 100%); 3% (70% - 80%); unspecified (≤ 70%)
Pulse: 2 BPM
Perfusion index: 1% (0-20%); unspecified (20% - 30%)
Operating temperature: 5 ° C to 40 ° C
Storage temperature: - 20 ° C to 55 ° C
Relative humidity: 15% to 85% non condensing
Test result: 5S
Automatic shutdown: 8s
Battery: 2 * AAA (not included)
Package size: 6 * 3.2 * 3.5cm/2.36*1.26*1.38 inch)
Package weight: approx.50g

Packing list:
1* Pulse oximeter
1 * User Manual