Quality Inspection for Handheld Spirometer - Medical equipments for hospital and home use CMS50D Pulse Oximeter – VinnieVincent

Introduction
Principle of the CMS50D Pulse Oximeter is as follows: Photoelectric Oxyhemoglobin Inspection Technology is adopted in accordance with Capacity Pulse Scanning & Recording Technology,the Pulse Oximeter can be used in measuring the pulse oxygen saturation and pulse rate through finger.The product is suitable for being used in family, hospital, oxygen bar, community healthcare, physical care in sports (It can be used before or after doing sports, and it is not recommended to use the device during the process of having sport) and etc.

Major Features
1)SpO2 value display
2)Pulse rate value display, bar graph display
3)Pulse waveform display
4)The display mode can be changed
5)Screen brightness can be changed
6)Low-voltage indication: low-voltage indicator appears before working abnormally which is due to low-voltage、Automatically power off function: when the device is under the state of measuring interface . it will automatically power off within 5 seconds if the finger falls out of probe
7)Display format can be saved after power off

Main performance
1) Display Mode：0.96″ Dual-color display(blue and yellow)
2) SpO2 Measuring Range：0%～100%, (the resolution is 1%).
Accuracy：70%～100%：±2% ,Below 70% unspecified.
3) PR Measuring Range：30bpm～250bpm, (the resolution is 1bpm)
Accuracy：±2bpm or ±2% (select larger)
4) Measurement Performance in Weak Filling Condition:SpO2 and pulse rate can be shown correctly when pulse-filling ratio is 0.4%. SpO2 error is ±4%, pulse rate error is ±2 bpm or ±2% (select larger).
5) Resistance to surrounding light: The deviation between the value measured in the condition of man-made light or indoor natural light and that of darkroom is less than ±1%
6) Power Consumption：less than 30mA
7) Voltage: DC 2.6V – 3.6V
8) Power Supply:1.5V (AAA size) alkaline batteries × 2
9) Battery working hour: Two batteries can work continually for 20 hours，The theoretical number is 36 hours
10) Safety Type:Interior Battery，BF Type

Accessories
1)a hanging rope（optional）
2)a user manual

Physical Identity
Dimension:57(L) × 31(W) × 32(H) mm
Weight:About 50g (with the batteries)
Technical Parameters
Display Mode : LED display
Spo2 Measuring Range : 0-100%
PR Measuring Range : 30-250bpm
Resolution : 1% for $ po2 , bpm for pulse rate
Accuracy : + 2 % ( 70 % 100 % ) , unspecified ( < 70 %for Spo2 , + bpm or + 2 % ( select larger ) for pulseate
Power Supply : 1 . 5V ( AAA size ) alkaline batteries
Can work more than 30hours continuously
Interference resistance capacity against ambient light and measurement performance at low perfusion
Integrated with Spo2 probe and processing display module
Application : hospital , home , community medical treatment , sports healthcare , etc .
Can measure Spo2 and Pulse Rate accurately
Spo2 and Pulse Rate display , bar graph display
Battery voltage low indication
Low power consumption ;
Dimension : ( 57 ( L ) x 31 ( W ) x32 ( H ) mm ) , light convenient to carry