Life Smart LS-320 User manual

LS-320
Infrared Thermometer
Instruction Manual
Genesis Biotech Pty Ltd (LifeSmart)
Manual Version: 1.0
Date of Issue: 2019/02
0482

Introduction
Thank you for choosing the LifeSmart Dual mode Digital Infrared
Thermometer.
Thanks to unique technology, this Dual mode infrared thermometer (LS-
320) can give consistently accurate results without interference from
ambient temperatures.
The dual mode infrared thermometer can scan either the forehead or the
ear within one second. Its special ergonomic design facilities easy
operation. With its storage memory of 20 readings, the user can easily
track any temperature variation. This device is equipped with a large LCD
display with a fever indicator, backlight and alarm.
Please read the instructions carefully before using the product, and keep
them in a safe and secure place for future reference.

Contents
Unpacking Check ........................................................................................ 1
Package Contents ........................................................................................ 1
Safety Precautions ....................................................................................... 1
Warning ....................................................................................................... 3
Symbols ....................................................................................................... 4
Body Temperature Basics............................................................................ 4
Product Description..................................................................................... 6
Features........................................................................................................ 7
Product Structure......................................................................................... 8
Display Description..................................................................................... 9
Sounds and Backlight Color Instructions.................................................... 9
Display and Operating Instructions........................................................... 10
Measuring Ear Temperature...................................................................... 16
Measuring Forehead Temperature............................................................. 18
Measuring Object Temperature................................................................. 18
Replacing Batteries ................................................................................... 20
Cleaning and Disinfection......................................................................... 21
Maintenance .............................................................................................. 22
Troubleshooting......................................................................................... 23
Specifications ............................................................................................ 24
Security Class ............................................................................................ 25
Storage and Transportation ....................................................................... 25
EMC Information-Guidance and Manufacturer’s Declaration................. 26
Warranty and After-Sale Service............................................................... 31

1
Unpacking Check
Please open the package carefully before use, check whether all
accessories are available or not and whether any component is damaged
during transportation, and perform installation and operation following this
user manual. In case of any damage or operation problem, please contact
the dealer or contact LifeSmart directly. You will need the following
information when making your claim: device model, serial number,
purchase date, and your contact information and address.
Package Contents
No.
Name
Quantity
1
Infrared Thermometer
1
2
Pouch
1
3
Battery (AAA)
2
4
Instruction Manual
1
Safety Precautions
Read the following precautions carefully before using the
thermometer.
Attention
◆Take care of the temperature probe lens, which is fragile.
◆Dispose used batteries with care. To protect the environment, you
are recommended to send the used batteries to a designated
collection point.
◆Remove the batteries if the thermometer will not be used for more
than two months.
◆Do not immerse the thermometer in water or expose it to direct
sunlight.

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◆Do not subject the thermometer to vibration or impact.
◆The normal body temperature varies from person to person.
Tracking a person's body temperature will help determine
whether they have fever.
◆Do not take body temperature readings within 20 minutes after
you do physical exercises or get excited.
◆Clean the thermometer probe after each use.
◆Do not use the thermometer on newborns or for continuous
temperature monitoring purposes.
◆Do not use the thermometer for purposes that are not specified in
this User’s Manual. Follow the instructions in the "Measurement
Process" chapter and carefully operate the thermometer when
measuring children's temperature.
◆Do not immerse the thermometer in water or other liquid, as it is
not waterproof. Clean and disinfect the thermometer as described
in the "Cleaning and Disinfection" chapter.
◆Do not touch the tip of the temperature probe, on which a precise
temperature sensor resides.
◆Keep the temperature probe clean to make sure accurate readings.
◆Before measuring the temperature from the ear canal, clean the
earwax, if any.
◆The ambient temperature must not be extremely high or low. To
make sure accurate readings, keep the thermometer under room
temperature for more than 30 minutes before use.
◆Do not use the thermometer under an ambient temperature higher
than 40°C (104°F) or lower than 10°C (50°F), which is beyond
the operating temperature range of the thermometer.
◆Risk of pollution! The user is recommended to send the overdue
thermometer to local garbage disposal site or send it back to us.
◆2 AAA batteries of 1.5V are the only replaceable accessories of
the thermometer. Please do not use the batteries of other voltages
or specifications.

3
Warning
Warning
⚫Do not force the temperature probe of the thermometer into an
ear canal. Otherwise, the ear canal may get injured.
⚫Keep the thermometer out of the reach of children.
⚫The result may be inaccurate if you use the overdue thermometer.
⚫The thermometer is not intended to diagnose or treat any health
problem or disease. The measurement results are for reference
only.
⚫It is dangerous to make a self-diagnosis or self-treatment based
on the obtained measurement results. For such purposes, please
consult a doctor.
Do not charge an alkaline dry-cell battery or throw it in fire.
Otherwise, the battery may explode.
Do not disassemble the thermometer or attempt to repair it.
Otherwise, the thermometer may be damaged permanently.
Do not take temperature measurements on body parts other than
forehead and ears. Otherwise, the temperature readings may be
inaccurate.
During measurement, do not use a mobile phone or any other
device that may cause electromagnetic interference.
Do not use the thermometer in an environment where flammable
anesthetic mixture with air or with oxygen or nitrous oxide is
available.

4
Symbols
Symbol
Description
Type BF applied part.
Attention must be paid.
The action is prohibited.
Information about the manufacturer.
Date of manufacture.
Consult the instructions for use.
This product complies with the MDD93/42/EEC
requirements.
Waste electrical materials should be sent to a
dedicated collection point for recycling.
IP22
Degree of protection against the Ingress of water.
Warning
A personal injury or damage to the thermometer
may occur if the thermometer is not used correctly.
Attention
Inaccurate reading or damage to the thermometer
may occur if the thermometer is not used correctly.
Body Temperature Basics
• The normal body temperature is a range.
• The normal range varies from person to person and can fluctuate
throughout the day.
• The normal range also varies by body site. Therefore, measurements

5
from different sites should not be compared directly.
To determine if an individual is experiencing an elevated body temperature
and/or having a fever, it is critical to know the individual’s normal body
temperature when he/she is well. Take multiple readings to obtain the
normal body temperature range and note the specific body site measured,
for example: forehead or eardrum temperature.
The normal body temperature range varies slightly with age and gender.
Generally, newborns or children have higher body temperatures than
adults, and adults have higher body temperatures than the elderly.
Women’s body temperatures are approximately 0.3°C (0.5 °F) higher than
men's.
Variation in body temperature
Body Site
Normal Temperature Range
Forehead
34.7°C-37.3°C (94.5°F- 99.1°F)
Eardrum
35.8°C-38.0°C (96.4°F-100.4°F)
Mouth
35.5°C-37.5°C (95.9°F- 99.5°F)
Armpit
34.7°C-37.3°C (94.5°F- 99.1°F)
Rectal
36.6°C-38.0°C (97.9°F-100.4°F)
Normal body temperature
fluctuates throughout the day
and is also affected by external
factors. The body temperature
of an individual is the lowest
between 2:00 a.m. and 4:00 a.m.
and the highest between 2:00
p.m. and 8:00 p.m. An
individual's body temperature
typically changes by less than
1°C (1.8°F) each day.

6
Product Description
1) Overview
Infrared Thermometer LS-320 measures the body temperature based on
the infrared energy emitted from the eardrum or the forehead. Users can
quickly get measurement results after properly positioning the temperature
probe in the ear canal or forehead. It can also be used to measure the
surface temperature of object (such as milk and water).
2) Structure
The thermometer consists of a shell, an LCD, a measure button, a beeper,
an infrared temperature sensor, and a Microprocessor.
3) Operating principle
The infrared temperature sensor collects infrared energy emitted by the
eardrum or the skin surface. After being focused by a lens, the energy is
converted into a temperature reading by the thermopiles and measurement
circuits.
4) Intended use
The LS-320 Dual Mode Digital Infrared Thermometer is intended for the
measurement of human body temperatures. The forehead mode is indicated
for use by people of all ages and the eardrum mode is indicated for use by
people above three months old.
5) Contraindications
Do not use the thermometer if the ear is infected with otitis or suppuration.

7
Features
01 Good safety
●Passive infrared receiving technology.
02 Easy operation
●Ergonomic design
●One button measurement
03 Quick measurement
●1-second measurement
04 High accuracy
●Advanced infrared temperature sensor, with high sensitivity
●High accuracy with automatic temperature calibration
05 Diverse functions
●20 readings recall
●Fever alert
●Switching between ºC and ºF
●Automatic power-off, power saving
06 Extensive application scope
● Forehead temperature measurement applicable to all age groups
● Ear temperature measurement applicable to children older than
three months, adults, and the elderly
07 Child mode
This mode is recommended for people under 12 years of age.

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Product Structure
(1) LCD display screen
(2) Power button / Measure button
(3) Unit switch button (˚C / ˚F)
(4) Mode button (Adult mode / Child mode/ Object)
(5) Probe (take off the cover when measuring the ear temperature)
(6) Probe cover (Automatic switch among object, forehead and ear modes,
by removing the probe cover to measure ear temperature and placing back
the probe cover for object and forehead temperature measurement.)
(7) Memory button / Sound switch

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(8) Battery cove
Display Description
1. Object temperature mode
2. Forehead temperature mode
3. Child mode
4. Ear temperature mode
5. Mute / un-mute
6. Temperature unit (˚F/˚C)
7. Low battery
8. Memory recall
9.Temperature value
Sounds and Backlight Color Instructions
Range
Sounds
Backlight
Forehead temperature (Adult / Child)
35.0℃-37.5℃/95.0℉-99.5℉
A long beep
green
37.6℃-42.2℃/99.6℉-108.0℉
3 short double beeps
Red
Ear temperature (Adult / Child)
35.0℃-37.5℃/95.0℉-99.5℉
A long beep
green
37.6℃-42.0℃/99.6℉-107.6℉
3 short double beeps
Red
Object temperature
0℃-100℃/32.0℉-212℉
A long beep
green
Note: When the forehead and the ear temperature is between 35.0°C/95.0℉
and 37.5°C/99.5℉, there will be a long beep and a green backlight. This
indicates that your body temperature is normal.
When the forehead temperature is between 37.6°C/99.6℉ and
42.2°C/108.0℉, and the ear temperature is between 37.6°C/99.6℉ and
42.0°C/107.6℉, there will be 3 short double beeps and a red backlight. This

10
indicates that your body temperature is a little high. You may have a fever.
Please consult your doctor if you are not sure.
Display and Operating Instructions
Screen Display
Operating Instructions
Displayed State
Sound and
Backlight Color
Measuring Ear temperature (Adult / Child)
Ear temperature
for adult
Ear temperature
for child
Take off the probe cover, press and
release the Power button for 1
second to power on the
thermometer. The symbol “ ” is
displayed on the screen.
Switch to the adult or child
measurement mode by pressing the
Mode button according to your
measurement needs.
Insert the temperature probe into a
proper position in the ear canal.
Press the Measure button to start a
measurement.
See the table in the
“Sounds and
backlight color
instructions”
section.
Measuring Forehead temperature (Adult / Child)

11
Screen Display
Operating Instructions
Displayed State
Sound and
Backlight Color
Forehead
temperature for
adult
Forehead
temperature for
child
Put the cover on the probe, press
and release the Power button for 1
second to power on the
thermometer The “Head” symbol
is displayed on the screen.
Switch to the adult or child
measurement mode by pressing the
Mode button according to your
measurement needs.
Point the thermometer to the center
of the forehead. about”1-3cm ”
away from the skin surface. Press
and release the Measure button.
The temperature will be displayed
on the screen.
See the table in the
“Sounds and
backlight color
instructions”
section.
Measuring Object temperature

12
Screen Display
Operating Instructions
Displayed State
Sound and
Backlight Color
Put the cover on the probe, switch
to the object measurement mode by
pressing the Mode button.The
thermometer enters the Object
mode. The “House” symbol is
displayed on the screen.
Point the thermometer to the center
of the object. Press and release the
Measure button. The temperature
will be displayed on the screen.
See the table in the
“Sounds and
backlight color
instructions”
section.
Out of the measuring range display
(for reference
only)
In Ear mode, a temperature reading
of more than 42.0ºC (107.6ºF)
In Forehead mode, a temperature
reading of more than 42.2ºC
(108.0ºF)
In Object mode, a temperature
reading of more than 100ºC
(212.0ºF)
A long beep, the
backlight is red.
(for reference
only)
In Ear mode, a temperature reading
of less than 35.0ºC (95.0ºF)
In Forehead mode, a temperature
reading of less than 35.0ºC (95.0ºF)
In Object mode, a temperature
reading of less than 0ºC (32.0ºF)
A long beep, the
backlight is red.
Recall 20 memories

13
Screen Display
Operating Instructions
Displayed State
Sound and
Backlight Color
In a power-on state, press the
Memory button enter the memory
mode.
When the Memory button is
released, 01 will be shown,
followed by the recorded reading.
Press the Memory button again for
the next recorded data. 02 will be
shown, followed by the recorded
reading.
A maximum of 20 temperature
readings can be recalled.
When the maximum number of
records is exceeded, the earliest
memory data will be overwritten.
Note:
01 means the latest data.
Silent, the
backlight is green.
No memory data / Clear memory data

14
Screen Display
Operating Instructions
Displayed State
Sound and
Backlight Color
The display is as shown, when there
is no more data to be checked while
recalling memories. Remove 2 dry
batteries and after 10 seconds re-
install the power to clear all
memory data.
When the power is
turned back on,
there are a long
beep and a green
backlight, which
then turns into red.
Switching between mute and un-mute
In the power-on state, press and
hold the sound switch button for
about 2 seconds to switch the sound
on or off. When the sound is turned
on, it will beep once and the mute
symbol will be displayed when the
sound is off.
The symbol shows up in Mute
mode and disappears in Un-mute
mode.
When the sound is
turned on, it
sounds a long
beep and the
backlight is
green.
Switching between object temperature and body temperature

15
Screen Display
Operating Instructions
Displayed State
Sound and
Backlight Color
When putting on the probe cover,
press the Mode button to switch
between object and forehead
modes. Ear mode (adult/child) will
be activated by removing the probe
cover.
Silent, the
backlight is green.
Switching between ºF/ºC
In a power-on state,you can change
units, by switching the ºF/ºC
button.
Silent

16
Screen Display
Operating Instructions
Displayed State
Sound and
Backlight Color
Error information & low battery
The ambient temperature is higher
than 40.0ºC (104.0ºF) or lower than
10.0ºC (50.0ºF).
A long beep,the
backlight is red.
An error occurs when data is being
read from or written to the memory,
or the temperature correction is not
complete.
A long beep,the
backlight is red.
When the battery voltage is lower
than 2.4V ± 0.1V, the low battery
symbol will appear on the display.
Please replace the batteries.
Silent
Measuring Ear Temperature
1. When using the thermometer for the first time, move the battery’s
insulating piece away.
2. Take the probe cover off from the thermometer before measuring the

17
ear temperature.
3. Press the Power button to power on the thermometer.
4. The “Ear” symbol is displayed on the screen.
5. Switch between “adult” and “child” modes by pressing Mode button.
symbol shows up in “child” mode.
6. Insert the temperature probe into the ear canal.
7. Press and release the Measure button. The ear temperature reading
will be displayed on the screen instantly.
Note: Children under 1 year: Pull the ear straight back.
Children aged 1 year to adult: Pull the ear up and back.
Do not force the thermometer into the ear canal. Otherwise, the ear
canal may get injured.
When taking the temperature on an adult, gently pull the ear up and
back to make sure the ear canal is straight, so that the temperature
probe can receive an infrared ray from the eardrum.