A Pulse Oximeter is a device which measures the oxygen saturation of a persons blood by looking at the absorption of light by the hemoglobin. (as opposed to measuring oxygen saturation directly through a blood sample).

The Contec CMS-50L is small and lightweight, with low power consumption. You just put your finger into the sensor of the device, and your blood oxygen level (SpO2) will appear on the screen within 5 seconds. The quickest device to monitor blood oxygen!
It is equipped with an LED screen and powers off automatically 4 seconds after you pull out your finger to save energy.
This oximeter detects SpO2 and pulse rate through the patients skin and indicates the pulse intensity with a bar graph. The device is ideal for use at home, in major hospitals (including internal medicine, surgery, anaesthesia, paediatrics, emergency room, etc.), oxygen bars, and before or after physical activity.

The CMS 50L is perfect for spot checking your blood oxygen levels, but is not appropriate for continuous monitoring over 2 hours. The measurement of SpO2 is taken from the arterial pulse, thus sufficient pulsating blood flow is required. For patients with weak pulse due to shock, low ambient/body temperature, major bleeding, or use of a vascular contracting drug, the SpO2 waveform (Pleth waveform) will decrease. In this case, the measurement will be more sensitive to interference, so make sure to keep your hand still on your lap or a surface during use of the oximeter.

Features:
� One button operation.
� Automatic power-off after 4 seconds without signal
� LCD Display
� 3 parameters reading (SpO2, PR, and Bar graph to show pulse intensity)
� Fast, accurate, continuous readings
� Can measure at low perfusion - SpO2 and PR can be measured properly when pulse saturation is at 0.4%
� Resistance to light interference
� Easy to use
� Lightweight (60g incl. batteries)
� Easy to carry pouch & neck cord included

Specifications:
� SPO2
Measuring Range：0%～100%, (the resolution is 1%).
Accuracy：70%～100%：�2% , Below 70% unspecified.
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%.
Pulse Rate
Range: 30bpm � 250bpm, +-2bpm or +-2%
Resolution: 1bpm
� Battery
Type: 2 AAA (1.5V) Alkaline batteries (not included)
Operation time: Minimum 24 hours, theoretical number is
56 hours.
Automatic power-off after 4 seconds
� Optical Sensor
Red light (660 nm wavelength)
Infrared (940 nm wavelength)
� Environmental
Operating Temperature: 10C - 40C (50F - 104F)
Storage Temperature: -20C - 55C (-4F - 131F)
Operating humidity: 35% - 80%
Storage Humidity: 10% - 100%
Operating Pressure: 70kPa � 106kPa
Storage Pressure: 50kPa � 106kPa

Contents:
Pulse Oximeter
Carry case
Lanyard
Manual