Use Instructions

Thank you for purchasing the electronic thermometer. Please
read through this manual before using the product.
Cautions
1. Please handle the unit with care. Do not drop or shock the unit.
2. Do not expose the unit under the sunlight. Do not immerse the
unit in water.
3. Keep the device out of reach of infants, children or pets, since
inhalation or swallowing of small parts (e.g. carpet feet,
batteries) can be dangerous or even fatal.
4. Avoid touching the lens with bare hands.
5. Do not use in areas with strong electromagnetic interference.
6. When the measurement data exceeds the normal temperature
of the human body, please consult your doctor.
7. If the unit is not working properly, please contact customer
service.
8. Do not disassemble the unit. Open the battery cover only when
replacing batteries. Dispose of the replaced battery in
accordance with local waste battery recycling requirements.
9. If the unit needs to be scrapped after the expiration date,
please dispose of it properly according to local regulations.
10. Please contact manufacturer if the unit enter calibration
mode.
11. Use the thermometer at room temperature, or within10-40°C.
12. Do not store the unit long period of time under -25°C or
above 70°C, or relative humidity above 90%.
13. For other precautions, please follow “Cleaning and Care” in
this manual.
14. The device is not suitable for use in the presence of ammable
anesthetic mixtures with air or with oxygen or nitrous oxide.
15. The operator shall not touch battery compartment and the
patient simultaneously.
16. Manufacturer will provide circuit diagrams, component part
lists, descriptions, calibration instructions to assist to SERVICE
PERSONNEL in parts repair.
-1- -2- -3-
-4-
-5-
Cautions.................................................................................................3
Special Features................................................................................5
Measurement Principle................................................................6
Product scope....................................................................................6
The component of product.......................................................7
Temperature measurement......................................................7
Forehead measurement..............................................................8
When the Measurement Result is Abnormal..................9
°C/°F unit conversion formula..................................................9
Unit (°C/°F)Switch..........................................................................10
Correct Measurement Method.............................................10
Memory Function..........................................................................10
Replacing Batteries.......................................................................10
Disposal................................................................................................11
Cleaning and Maintenance.....................................................11
Display Message.............................................................................12
Product specication..................................................................13
Contents
-12-
TET-351
Clinical Infrared Thermometers
1. Measurement Range: Body: 32~43°C.
2. Accuracy ±0.2°C. (Outside 35~42°C measurement range,
accuracy ±0.3°C).
3. 1 second measurement time.
4. LCD display.
5. Red,orange and green backlight reminder
6. Ear temperature and forehead temperature can store 30 latest
measured values each.
7. Automatic power o when thermometer is not in use after 1
minute.
8.Unit of Measurement: °C/°F.
Special Features
All objects, solids, liquids and gases radiate infrared energy to the
surrounding environment. The energy that the human body
radiates to the outside world is basically based on infrared
radiation. The electronic thermometer can accurately measure the
body temperature by accurately measuring the weak infrared
energy released by the human body, and then through complex
calculation processing and various compensation corrections.
The product is composed of a built-in infrared probe head and
related hardware and software, can sense, analyze and record the
temperature of the measured object and the environment.
The infrared radiation sensor is activated when the user places the
thermometer near certain parts of the body and space presses the
Power/Measure button. The thermal energy generated by the
arterial blood ow is quickly detected by the infrared sensor, so
that the body temperature is accurately measured.
Measurement Principle
Intended use
The TRULY infrared Thermometer TET-351 is an electronic clinical
thermometer using an infrared sensor to detect human body
temperature from the auditory canal and from the forehead in the
neonatal, pediatric and adult population used in the home
setting.
Statement
If replacing the original parts with parts not provided by the
manufacturer may cause measurement errors. When the unit or
accessories in the and of the service life, it should be handled in
accordance with local regulations or returned to the
manufacturer, and cannot be discarded at will.
Product specication
-7--6- -8- -9- -10- -11-
4. Interval Between Measurements
If you need to take another measurement, allow an interval of
8 seconds until the signal "°C / °F” ashes. If you press the
measurement button within 8 seconds, the beep signal will be
sounded.And there is no measurement result displayed.
5. The temperature is automatically recorded.
* Push Power/memory button until The “OFF” signal is displayed.
* the thermometer will turn o Automatically without use for 1
minute.
Green: 35.8°C~37.3°C
Orange: 37.4°C~38.0°C
Red: 38.1°C~43°C,high temperature, please consult your doctor.
No backlight:32°C~35.7°C
When the Measurement Result is Abnormal
1. Possible causes for high temperature:
* After exercise, meal, or crying.
* Prolong is staying in high temperature environment.
* Thermometer is taken out from low temperature environment.
Keep the thermometer in room temperature for at least 30
minutes before using.
2. Possible causes for low temperature:
* The probe is dirty.
* Just exposed in cold temperature environment before taking
measurement.
* Forehead: The probe is not facing forehead in straight.
* The thermometer is pulled out from the ear before
measurement complete.
* The probe is not tted snugly into the ear canal.
* The probe is not facing the ear drum or is not placed in a
corrective position in the canal. See “Correct Measurement
Method”.
* Excess ear wax build-up.
3. Temperatures measured from left and right ears are dierent:
There could be slight dierence in temperatures when taking
from both ears. Therefore, always take the temperature from the
same ear.
This temperature reading must be considered as an estimation.
The temperature reading of the forehead can be inuence by
environmental conditions because the probe is more sensitive to
perspiration, sebum,physical activity and environmental temperature.
It is recommended that you wipe the forehead before taking a
reading, In case of important dierences of in any doubt, the ear
measurement must be pointed out, we remind you that there is a
signicant dierence between an ear temperature reading and a
forehead temperature reading.
Forehead measurement
1. Turn on the thermometer.
2. Press the button to select the forehead mode.
3. Place the detector at the position of the eyebrow, press the
measurement button, and the measurement is completed
after hearing the sound “bee”.
4. While taking the temperature, the screen indicates and audible
bips sound.
5. Release the measurement button, wait for the validation sound
beep before removing the thermometer.
6. Read the temperature on the screen.
7. The temperature is automatically recorded.
8. Interval time is same to the ear mode.
Note:
When the ambient temperature is low, the skin temperature of the
forehead is quite dierent, and the detector is not aligned with the
eyebrow, which will cause the forehead temperature measurement
temperature to be low.
This product includes removable parts and accessories, and
cannot be disposed with household waste. All users must
return electrical and electronic equipment to a separate waste
collection and collection center that specializes in electrical
and electronic equipment for disposal in order to comply with
2002/96 / EC . Otherwise, you can recycle it for the retailer you
purchased. Violations of this rule will result in severe penalties.
Do not dispose of electrical appliances as unsorted municipal
waste, use separate collection facilities. Contact you local
government for information regarding the collection systems
available. If electrical appliances are disposed of in land_lls or
dumps, hazardous substances can leak into the groundwater
and get into the food chain, damaging your health and
well-being.
When using the product, please follow the prompts when you
nd the following conditions.
1. External dirt: Wipe the dirt with a clean soft cloth with water, or
use a cotton swab with medical alcohol. Wiping with medical
alcohol can also have sterilization purpose. Take care not to add
too much water or alcohol to prevent damage to the inside of
the instrument.
2. Internal dirt: The black glass lens of the internal probe is an
important device. Do not touch or press with your ngers or
other objects, otherwise it will aect the accuracy of the
measurement. When the glass lens surface is dirty, please wipe
the lens surface with 95% anhydrous alcohol with a cotton
swab.
3.Storage: Keep in a dry, dark place out of direct sunlight.
Note:
Do not wipe the lenses with 75% sterile alcohol (residual water marks).
Do not use other chemical agents to wipe the lens (damage the lens).
Cleaning and Maintenance
Disposal
Display Message
Display
message
Situation Solution
Ambient temperature is out
of operating range (10-40°C)
or the environment
temperature is not stable.
Temperature measured is
higher than normal human
temperature (above 43°C)
Temperature measured is
lower than normal human
temperature (below 32°C;)
Low battery Replace batteries.
Allow the thermometer to
remain in room temperature
(10-40°C) for 30 minutes.
Check the measured object
and take a new measurement.
Check the measured object and
take a new measurement.
-13- -14 - -15 - -16 -
Rev.03
2021/09/29
CONTACT INFORMATION
TET-351 is manufactured by:
Truly Instrument Ltd.
Address：2/F., Chung Shun Knitting Centre,1-3 Wing Yip St, Kwai Chung, N.T,
HONG KONG
TEL：[phone]
FAX：[phone]
Facility:
Truly Instrument Ltd.
Truly Industrial Area, Shan Wei City
, 516600,Guang Dong Province, PEOPLE’S REPUBLIC
OF CHINA
Authorized European Representative:
Wellkang Ltd t/a Wellkang Tech Consulting
Address：Suite B, 29 Harley Street, LONDON W1G 9QR, United Kingdom
Normative references (Continued)
FCC Statement
Correct use is the key to accuracy of measurement ,
otherwise it may cause measurement error. Since infrared
measurement has higher requirements on the surrounding
environment, please follow the instructions as below
1. When measuring ear temperature ,it’s best to try to aim at the
eardrum. It helps measure the temperature more accurately.
2. When the person to be measured comes from a place with a
large temperature deference from the measurement
environment, it should stay in the test environment for at least
5 minutes, and then measure after the temperature is
consistent with the environment, otherwise it will aect the
measurement result.
3. When the instrument is taken from a place with a large
temperature deference from being measured and used, the
instrument should be placed in the used environment for 20
minutes before use.
4. The surrounding environment of the person to be tested must
be stable, and it cannot be tested in places with large airows
such as fans and air outlets of air conditioners.
5. Do not use the instrument in strong sunlight.
6. When measuring, it is recommended to measure about 3 times
each time, the most displayed set of data shall prevail.
1 Main safety features of infrared electronic thermometer
1.1 Type of anti-shock: Internal power supply
1.2 Type of anti-shock:: BF type application
1.3 Degree of protection against ingress: Not applicable
1.4 degree of safety when used under ammable anesthetic gas
mixed with air or ammable anesthetic gas mixed with oxygen or
nitrous oxide: Non AP/APG type.
1.5 operating mode: Continue to operate
1.6 Rated voltage: d.c. 3V
1.7 Input power: Not applicable
1.8 The thermometer has no application part with protection against
debrillation discharge eects
1.9 The thermometer has no signal output section or input section
1.10 The thermometer is a portable device
2 The Temperature sensor is treated as the applied part.
1. When the body has a fever or the ambient temperature is low,
the exposed forehead is aected by the low temperature of the
environment. The human body will have a high body
temperature and a low forehead temperature. If the digital
thermometer tests the forehead with low value, please test the
temples, ear roots or other parts of the human skin covered
with clothing with higher temperature.
2. The detector may not be directly point to the eardrum due to
the small ear holes of children, the curved ear holes of adults,
or aected by earwax and ear hair. If the digital thermometer
tests the ear temperature with low value, please test the
temples, or other parts of the human skin covered with
clothing with higher temperature.
3. The human body is a very complex biological integrated
system. Aected by the environment and human body, the
electronic thermometer may sometimes display abnormal
body temperature (such as when body fever but forehead
temperature or ear temperature show low value). Test the
armpit temperature by mercury thermometer and consult a
doctor in time.
4. Please do not test children’s ear temperature continuously.
Insert the probe into child in the ear canal, can lead to infrared
sensor temperature rise and cause each measurement data
inconsistency, Wait a while after each measured test, which can
guarantee the accuracy of temperature measurement.
Warning:
1. TET-351 needs special precautions regarding EMC and needs
to be installed and put into service according to the EMC
information provided in the ACCOMPANYING DOCUMENTS;
2. Portable and mobile RF communications equipment can
aect TET-351.
This device complies with part 15 of the FCC Rules. Operation is
subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause
undesired operation.
Any Changes or modications not expressly approved by the
party responsible for compliance could void the user's authority
to operate the equipment.
This equipment should be installed and operated with a
minimum distance of 0mm between the radiator and your body.
Normative references
Guidance and manufacturer’s declaration - electromagnetic emissions
Emissions test Compliance
RF emissions
CISPR 11
RF emissions
CISPR 11
Harmonic emissions
IEC 61000-3-2
Voltage uctuations/ icker
emissions
IEC 61000-3-3
Group 1
Class B
Not applicable
Not applicable
Normative references (Continued)
Guidance and manufacturer’s declaration - electromagnetic Immunity
NOTE UT is the a.c. mians voltage prior to application of the test level.
Immunity Test Compliance level
Electrostatic discharge (ESD)
IEC 61000-4-2
Electrical fast transient/burst
IEC 61000-4-4
Surge
IEC 61000-4-5
Voltage dips, short
interruptions and voltage
variations on power supply
input lines
IEC 61000-4-11
Power frequency magnetic eld
IEC 61000-4-8
Conducted RF
IEC61000-4-6
Radiated RF
IEC61000-4-3
Not applicable
Not applicable
Not applicable
30 A/m
50Hz/60Hz
Not applicable
10 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
10 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
Not applicable
30 A/m
50Hz/60Hz
Not applicable
Not applicable
Not applicable
±8 kV contact
±2 kV, ±4 kV,±8 kV, ±15 kV air
±8 kV contact
±2 kV, ±4 kV,±8 kV, ±15 kV air
IEC 60601-1-2
Test level
Guidance and manufacturer’s declaration - electromagnetic Immunity
Test
Frequency
(MHz)
385
450
710 704 –
787
800 –
960
1 700 –
1 990
Pulse
modulation
217 Hz
2 0.3 28
Pulse
modulation
18 Hz
2 0.3 28GSM
800/900,
TETRA
800,
iDEN 820,
CDMA 850,
LTE Band 5
GSM 1800;
CDMA
1900;
GSM 1900;
DECT;
LTE Band
1, 3,
4, 25;
UMTS
LTE Band
13,
17
Pulse
modulation
217 Hz
745
780
810
1720
1845
1970
2450
5240
5500
5785
2 400 –
2 570
5 100 –
5 800
WLAN
802.11
a/n
Pulse
modulation
217 Hz
0,2 0.3 9
Bluetooth,
WLAN,
802.11
b/g/n,
RFID 2450,
LTE Band 7
Pulse
modulation
217 Hz
2 0.3 28
870
930
380
–390
430
–470
GMRS 460,
FRS 460
FM
± 5 kHz
deviation
1 kHz sine
2
0,2 0.3 9
0.3 28
TETRA 400 Pulse
modulation
18 Hz
1,8 0.3 27
Band
(MHz)
Service Modulation
(W)
Distance
(m)
IMMUNITY
TEST
LEVEL
(V/m)
Modulation
Radiated RF
IEC61000-4-3
(Test specications
for ENCLOSURE
PORT IMMUNITY to
RF wireless
communications
equipment)
O O
Unit( C / F) Switch
When the product is in o state,press and hold "power/memory"
Button for 10 seconds until the display shows " °C" or " °F"
alternately.
Release the button when the display is showing your desired unit.
O
C /
O
F unit conversion formula
°F=1.8x°C+32
Correct Measurement Method
1. Ensure the probe is facing eardrum In straight line. Otherwise,
the measured temperature will be lower than the actual body
temperature.
2. For accurate result, clean the probe with cotton bud before
measuring.
o
C
36.8
eardrum
Ear canal
Lower measured temperature
eardrum
Ear canal
eardrum
Ear canal
The component of product
lens
Measurement
button
Battery cover
Power/memory
button
Probe
LCD display
temperature mode
button : ear or forehead
Product scope
For measurement of body temperature through eardrum and
forehead.
Normal body temperature range according to World Health
BODY TEMPERATURE:
This thermometer stores the last 30 temperature readings.
* When power on, press power/memory button to recall rst reading.
* Repeat pressing power/memory button to recall the next reading.
* Delete memory:
Press both power/memory and measurement buttons and hold for
3 seconds. The signal “Clr” displayed and the memory will be deleted.
This thermometer is powered by 2 AAA batteries. When the power is
low, the low battery signal is displayed. To replace batteries:
1. Press and push the battery cover to open it.
2. Remove the old batteries and replace with new ones.
Make sure the batteries are in right polarity direction.
3.Close the battery cover.
Note:
To protect the environment, dispose of empty batteries
at your retail store of at appropriate collection sites
according to national or local regulations.
Memory function
Replacing the Batteries
Temperature measurement
1.Press” ” to turn on the device, it will appear successively
following: --> "bee" sound and the display is on; --> backlight
display shows red, orange, green --> "°C" symbol is ashing
(measurement waiting).
2. Measure ear temperature
Gently pull the auricle to straighten the ear canal, x the head,
insert the detector into the ear hole and align with the eardrum.
Press ”MEAS” button, when you hear ”bee” sound and nish the
measurement.
3. Measurement result.
Measurement complete,the device will show the test result,and
with white backlight display.
How to pull the ear
* For babies below
12 months: Pull ear
smoothly backward.
* For children above
12 months old and
adults: Pull ear
smoothly upward.
152×52×36 mm
Project
LCD display
＜2.6V±0.1V
Ambient temperature:10°C~40°C；
Relative humidity :15% to 90%；
Atmospheric pressure : 70kPa ~ 106kPa
Ambient temperature:-25°C~70°C；
Relative humidity : ≤90%；
Atmospheric pressure : 70kPa ~ 106kPa
0.1°C
°C，°F
30 groups memory
1 minute after not being used
About 66g (Not including batteries)
2 x AAA
1000 times
5 Year
Measuring type
Measuring mode
Memory
Automatic shutdown
Storage
temperature
Operation
Environment
Unit
Display resolution
Low voltage tip
Indicator Functions
Battery
Used Life Span of
Battery
Service life
Size
batteries.manual
Contents of the
packaging
A01
Software version
Weight
Content
Infrared Thermometer
Ear/Forehead temperature
±0.2°C（Surrounding：16°C~35°C）
32°C~43°C
Note: Subject to modication without prior notice.
Accuracy
Measurement range
35.8 °C ~38 °C
34.7 °C ~37.8 °C
35.5 °C ~37.5 °C
34.7 °C ~37.3 °C
36.6 °C ~38 °C
Measurement site Normal temperature
Ear temperature
Oral temperature
Armpit temperature
Anal temperature
Forehead temperature
DHF
标准品样稿
SIZE：80*140MM 黑白印刷/整本
Prior to rst use, Download and install“ TRULY Healthcare ”
application on your device. (Bluetooth 4.0 capabilities,e.g.ios 11.0
,or Android 7.0).
download link
IOS https://www.pgyer.com/1gi
Android heps://www.pgyer.com/sp3J
Login account:Moblie account
Install password :123456
2. Open “ TRULY Healthcare” application Pressure icon on
Measurement screen.
3.Turn on Bluetooth“Allow”,
4.Click“Thermometer”.
5. Press the “Start” button.
6. When the measurement is complete, the temperature will
display on Thermometer monitor & press “Save”
Measurement data.
7. All the measurement data will be saved in the app.
1. Installation
-17 -
-18 -
Connect device via Bluetooth
IP is short for Ingress Protection which means that
Protection’s level.
CE Mark: conforms to essential requirements of the
Medical Device Directive 93/42/EEC.
Authorized Representative in the European Community
Date of manufacture.
Manufacturer
Species serial number
Type BF applied part
Direct current
Caution
Follow instructions for use
The device should not be used after the end of the
shown or the day
DISPOSAL: Do not dispose this product as unsorted municipal waste. Collection of
such waste separately for special treatment is necessary.
SN
FCC ID:2ABG7 -TET-351