• Explosive hazard - DO NOT use this device in environment with
inammable gas such as anesthetic.
• DO NOT use this device during an MRI or CT scan, as the induced current
may cause burns.
• DO NOT take the information displayed on this device as the sole basis
for clinical diagnosis. This device is not intended as a replacement for
advice from a physician or medical professional.
• This device is NOT recommended for continuous monitoring.
• DO NOT use on a ngertip that has scar tissue or or that has any other
skin disorder as this may affect the measurement accuracy.
• DO NOT stare directly into the nger chamber of this device while it is
turned on as the infrared light may be damaging to the eyes.
• This device contains silicone, PVC, TPU, TPE and ABS materials, whose
biocompatibility has been tested in accordance with the requirements
in ISO 10993-1, and it has passed the recommended biocompatibility
test. Anyone with allergies to silicone, PVC, TPU, TPE or ABS should not
use this device.
• DO NOT use the included lanyard if you are allergic to nylon/polyester
material.
• DO NOT wrap the lanyard around the neck to avoid an accident.
• This device should be kept out of the reach of children/pets. When
not in use, store this device in a dry room and protect against extreme
moisture, heat, lint, dust and direct sunlight. Never place any heavy
objects on the pulse oximeter.
• DO NOT throw batteries into re.
• DO NOT discard in household trash.
• Only use recommended batteries.
• DO NOT use rechargeable batteries.
• DO NOT drop, disassemble or modify this device.
• DO NOT use this device if you think it is damaged or notice anything
unusual.
• This device comprises sensitive components and must be treated with
caution. Observe the cleaning, maintenance and operating conditions
described in this INSTRUCTION MANUAL.
• DO NOT perform service or maintenance while this device is in use.
• DO NOT touch the battery and the person at the same time.
• DO NOT use this device if it is damaged, degraded or loosened in any way.
• Continuous use of a damaged device may cause injury, improper
results, or serious danger.
• This device needs to be used and serviced in accordance with the
information provided in this INSTRUCTION MANUAL.
OVERVIEW
The oxygen saturation is the percentage of HbO
2
in the total Hb in the blood,
so-called the O
2
concentration in the blood, it is an important physiological
parameter for the respiratory and circulatory system. A number of diseases
related to the respiratory system may cause a decrease of SpO
2
in the blood.
APPLIED RANGE
This Pulse Oximeter is a non-invasive device intended for the spot-check
of arterial hemoglobin (SpO
2
) and the pulse rate of adults in home use
environments. This device is not intended for continuous monitoring. Solely for
use with sporting and aviation activities. Intended to monitor heart rate
during exercise.
ENVIRONMENTAL REQUIREMENTS
• Storage Environment
a) Temperature: -40°F - 140°F (-40°C - 60°C)
b) Relative humidity: ≤ 95%
c) Atmospheric pressure: 500 hPa - 1060 hPa
• Operation Environment
a) Temperature: 50°F - 104°F (10°C - 40°C)
b) Relative Humidity: ≤ 75%
c) Atmospheric pressure: 700 hPa - 1060 hPa
NOTE: BEFORE YOU BEGIN, WARM THE HANDS AND FINGERS BY
RUBBING THEM TOGETHER.
• Low blood perfusion can affect oximeter readings.
• 99% of reading errors are caused by cold extremities.
• Keep hand and nger still as movement may affect the reading.
• Allow at least 30 seconds for the measurement to stabilize.
• Nail polish and articial ngernails may cause false or no results.
Principle of this Pulse Oximeter is as follows: An experience formula of
data process is established taking use of Lambert Beer Law according to
Spectrum Absorption Characteristics of Reductive Hemoglobin (Hb) and
Oxyhemoglobin (Hb0
2
) in glow & near-infrared zones. Operation principle of
the device is: Photoelectric Oxyhemoglobin Inspection Technology is adopted
in accordance with Capacity Pulse Scanning & Recording Technology, so that
two beams of different wavelength of lights can be focused onto human nail
tip through perspective clamp nger-type sensor. Then measured signal can
be obtained by a photosensitive element, information acquired through
which will be shown on screen through treatment in electronic circuits and
microprocessor.
1. Slide open the back cover and install 2 AAA batteries as shown. To avoid
damage, make sure the batteries align with the “+” and “–” symbols.
2. Replace the back cover.
Figure 4.
Attaching the connector loop
1. Thread the thin connector loop through the hole.
2. Insert the quick-release buckle through the loop.
3. Slide the lanyard clip into the quick-release buckle.
1. Gently squeeze to open the nger chamber.
2. Place nger fully into the chamber.
3. Press the ON button.
Fingertip Pulse Oximeter
Instruction Manual
Figure 1.
Operating principle
AAA
AAA
Figure 2. Fingertip Pulse Oximeter
Figure 5.
Put nger in position
WARNINGS
PRINCIPLE
TECHNICAL DATA
READ AND SAVE THESE INSTRUCTIONS. PLEASE READ THIS
INSTRUCTION MANUAL BEFORE USING THIS DEVICE. IF THE
USAGE IS NOT FULLY UNDERSTOOD, PLEASE DO NOT USE THIS
PULSE OXIMETER.
ATTENTION
• Use and store this device according the ENVIRONMENTAL
REQUIREMENTS section of this INSTRUCTION MANUAL.
• When the ambient temperature of the device changes too much, such
as when moving from one room at a lower temperature, to another
room at a higher temperature, allow the device to remain in the room
for 30 minutes before using.
• DO NOT use if this device is splashed by or immersed in water.
• High temperature, high pressure, gas sterilizing or immersion
disinfection for this device is not permitted. Refer to the CLEANING &
DISINFECTING section of this INSTRUCTION MANUAL.
• This device may not be suitable for all users. Measurement results
are for reference only. Contact your physician if you have or suspect a
medical condition.
• Data averaging and signal processing have a delay in the upgrade of
SpO
2
data values. When the data update period is less than 30 seconds,
the time for obtaining dynamic average values will increase.
• DO NOT use external coloring agents (such as nail polish, articial nails,
or colored skin care products) on the test nger as this may affect the
measurement accuracy.
• Measurement accuracy may be impacted if the test nger:
-Is too cold. Warm the test nger up before using the device.
-Is too thin. Trying using a bigger nger such as the thumb or middle nger.
-Has a long ngernail. Trim the ngernail or switch to a nger with a
short nail.
• Refer to Figure 5 in this INSTRUCTION MANUAL for correct nger
position to use this device. Improper nger position may cause
inaccurate results.
• The light between the photoelectric receiving tube and the light-
emitting tube of this device must pass through the subject’s arteriole.
Make sure the optical path is free from any optical obstacles like
rubberized fabric, to avoid inaccurate results.
• Excessive ambient light may affect the measured results, such
as surgical light (especially xenon light sources), bilirubin lamp,
uorescent lamp, infrared heater and direct sunlight, etc. In order to
prevent interference from ambient light, make sure to place the sensor
properly and cover the sensor with opaque material.
• This device should not be placed on a limb with a blood pressure cuff,
arterial ductus or intraluminal tube.
• The measured value may be inaccurate during debrillation and in
a short period after debrillation, as it does not have a debrillation
function.
• This device has been calibrated before leaving factory.
• This device is calibrated to display functional oxygen saturation.
CLINICAL RESTRICTION
A. As the measurement is taken on the basis of arteriole pulse, substantial
pulsating blood ow of the user is required. For a user with weak pulse
due to shock, low ambient/body temperature, major bleeding, or use
of vascular contracting drug, the SpO
2
will decrease. In this case, the
measurement will be more sensitive to interference.
B. The measurement will be inuenced by intravascular staining agents (such
as indocyanine green or methylene blue), skin pigmentation.
C. The measured value may be seemingly normal for a user who has anemia
or dysfunctional hemoglobin (such as carboxyhaemoglobin (COHb),
methaemoglobin (MetHb) and sulfhaemoglobin (SuHb), however the user
may appear hypoxia. It is recommended to perform further assessment
according the clinical situation and symptoms.
D. Pulse oxygen only has a reference meaning for anemia and toxic hypoxia,
as some severe anemia patients still show better pulse oxygen measured
values.
E. Contraindication: no
FINGERTIP PULSE OXIMETER COMPONENTS
INSTALLING BATTERIES IN YOUR PULSE OXIMETER
ATTACHING THE LANYARD TO THE PULSE OXIMETER
MEASURING PULSE RATE AND BLOOD OXYGEN LEVELS
Optical sensor
Red light Wavelength: about 660 nm, optical output power: < 6.65 mW
Infrared light Wavelength: about 905 nm, optical output power: < 6.75 mW
Safety class Internally powered equipment, type BF applied part
International
Protection
IP22
Working voltage DC 2.6 V - 3.6 V
Working current ≤ 25 mA
Power supply DC 3V (2 x AAA batteries)
Battery life Two batteries can work continually for approximately 24 hours
Dimension
2.2”(L) x 1.2”(W) x 1.3”(H)
57mm(L) x 31mm(W) x 32mm(H)
Weight About 1.8oz /51g (including batteries)
If you have any problems, please do not contact the store.
Contact our customer service at 1-877-383-6399
(8:30 am - 5:00 pm EST) Monday - Friday
or contact us at
info@stareliteinc.com
Our customer service will be happy to assist you.
© 2021 Sunbeam Products, Inc. All rights reserved.
Distributed by Star Elite Inc., Montreal, Canada H3B 3X9.
SE004-071421
Fingertip Pulse Oximeter Model CMS50DL
Printed in China
Model : CMS50DL
Item: 16979
Figure 3.
Batteries Installation
Power Button
SpO
²
Display
Battery Level Indicator
Pulse Rate BPM (beats per minute)
Pulse Rate Bar Graph
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