Yolanda TH10A User manual

TH10A-MDF-019
Infrared thermometer
User Manual
Mode：TH10A
Shenzhen Yolanda Technology Co., Ltd.

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Introduction
Thank you for choosing the infrared thermometer of Shenzhen Yolanda Technology Co., Ltd..
With the unique technology, the infrared thermometer TH10A of Yolanda can give the result of
stable measurement. The product will self-test every time when it starts up to make sure the
normal operation and accuracy.
The infrared thermometer Model TH10A can measure body temperature from the forehead and
Ear of infants and adults, it can be used by consumers in household environment and by doctors
in the clinic.
Please read the instructions carefully before using the product, and put it in a safe and secure
place for reference.
Copyright 2021 by Shenzhen Yolanda Technology Co., Ltd.
Version:V1.0
Printed in 21/Jun/2021.

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Table of Contents
1. Product Overview .............................................................................................................4
2.Warning instructions and precautions ..............................................................................5
3.Symbol description ..............................................................................................................5
4. Safety Precautions ..............................................................................................................6
5. Description of the TH10A ..................................................................................................8
6. Specifications ....................................................................................................................10
7 wireless technology ...........................................................................................................12
8. Battery Installation/Replacement....................................................................................14
9 Instruction for use ..............................................................................................................15
10. Wireless transmission function operation guide ........................................................21
11. Cleaning/disinfection and Care ....................................................................................34
12 Calibration .........................................................................................................................36
13 Maintenance .....................................................................................................................37
14.Packing list ........................................................................................................................37
15.Trouble-shooting ..............................................................................................................37
16. Standard List ...................................................................................................................39
17. Disposal ............................................................................................................................39
18 RF STATEMENT/ FCC statement ................................................................................40
19.EMC DECLATION ...........................................................................................................41
20.Reporting adverse events ..............................................................................................45
21. Manufacturer and European Authorized Representative Information ....................46

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1. Product Overview
Thank you for choosing our Infrared Thermometer. The TH10A Infrared Thermometer
is used to measure objects temperature based on the relationship between
temperature and measurable infrared radiation. Simply aim the unit’s probe at the
surface of objects to obtain a quick and accurate temperature.
To ensure proper use, please be sure to read this user manual carefully, paying close
attention to the safety precautions.
 In order to use this product correctly, please read the user manual before use.
 In order to properly use this product, please carefully read the full text of this
manual before using, in particular the “safety precautions” section.
 Please keep this instruction manual in a convenient place for reference.
Medical background
Body temperature is one of the key indicators of human life activities. It is of great
significance to measure body temperature accurately and quickly for disease
diagnosis and treatment. Infrared temperature measurement provides a fast and non-
contact measurement method for measuring human body temperature. Compared
with the traditional mercury thermometer, this temperature measurement method
has the advantages of fast response speed, short measurement time, high precision
and simple use, and can be widely and effectively used for the investigation of body
temperature of dense people. Non-contact infrared thermometers are effective for
specific people, such as children or the elderly.
Basic principles:
All object, solid, liquid or gas, emit infrared energy by radiation. The intensity of this
energy depends on the temperature of the object. The Infrared Thermometer is
therefore able to measure the temperature of a person by the energy the person
emits. This measurement can be carried out by a temperature probe installed on the
infrared thermometer, which can permanently analyze and record the ambient
temperature. Therefore, as soon as the operator holds the thermometer near the
body and activates the radiation sensor, the measurement is taken instantly by
detection of the infrared heat generated by the arterial blood flow or eardrum.

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2.Warning instructions and precautions
The warning signs and graphic symbols in the manual are intended to enable you to
use the product safely and correctly and to prevent harm to you and others.Warning
marks and graphic symbols are described as follows:
Warnin
g
/
p
recautions s
y
mbols
Waring
Indicates a potentially hazardous situation which, if not avoided, could
result in death or serious injury.
caution
Means a possibility of personal injury or property damage in
case of improper use.
Notes
Indicates the need for attention, if not attention may lead to
incorrect use of the product or property device damage.
3.Symbol description
The product should be
vertically up
Pile Limit 4 layers
Applied part of type BF Batch code
Serial Number Refer to instruction manual.
Manufacturer information:
The manufacturer name
and address
Manufacture date
Keep Dry Complies with FCC rules
Fragile, handle with care / /
1639
Complies with the European Medical Device Regulation ( 2017/745.
Notified Body is 1639.
Authorized representative in the European Community.
IP22 The first number 2: Protected against solid foreign objects of 12.5mm
diameter and greater. The second number 2: Protected against
vertically falling water drops when enclosure titled up to 150 .
Disposal in accordance with Directive 2002/96/EC (WEEE)
This device has not been tested for use in an MR environment, it
should not be used in MR environments. Please keep it outside the
MRI scanner room.

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4. Safety Precautions
Warnings
- Please put the Thermometer out of children reach.
- Do not take readings less than half an hour after a meal, exercise, a bath, take medicine or
time spent in a particularly hot or cold environment.
- Do not measure the sites of scarred tissue or tissue compromised by skin disorders,
because sensing body temperature from sites of scarred tissue or tissue compromised by
skin disorders may be not correct.
- Do not measure the site of forehead temperature if that patient has trauma on forehead.
- For patients with external otitis and media otitis or other ear diseases, please do not use
this thermometer to measure the ear temperature, which may worsen the disease or got
the inaccurate measurement results.
- Do not forcibly insert the probe in the ear. If you feel uncomfortable such as pain during
measurement, stop using the unit. It may injure the external auditory canal.
- Do not measure if that patient is treated with certain drug therapies, body temperature may
increase if the drug is within the effort time limit.
- Do not use the unit to measure ear temperature when the external auditory canal is wet
such as after swimming or a bath. It may cause measurement inaccurate.
- Do not measure when the measured sites(forehead) is exposed to direct sunlight, fireplace
heat, cold compress therapies, air conditioner flow.
- In order to obtain reliable and stable results, there is a significant change in the ambient
temperature due to a change of environment, you are advised each time to allow the
infrared thermometer to acclimatize to this ambient temperature for 30 minutes before
using it.
- In order to ensure the accuracy of measurement data, please don’t take measurement of
body temperature in strong electromagnetic interference environment (such as microwave,
high frequency equipment operation environment).
- Portable and mobile RF communications equipment may affect the device function
properly.
- Measurement may be altered when used near a TV, a microwave oven, a mobile phone or
any other device with an electric field.

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- Lay persons shall be note that the use of this thermometer is not intended as a substitute for
consultation with your physician. It is dangerous for user to perform a self-evaluation and self-
treatment based on the measuring results, consult your doctor if you suspect a fever.
- As ear wax can affect the measurement, you should clean the ear before measuring ear
temperature.
- The thermometer may be used by children only under adult supervision.
- Please make sure the measuring distance of forehead is within 1~3 cm.
Cautions:
- This device must only be used for the purposes described in this instruction manual.
- Should a problem occur with your device, please contact your retailer. Do not attempt to
repair this device yourself.
- Do not disassemble, repair, or modify the unit.
- When we measure someone's body temperature continuously, there should be at least one
minute between two measurements. If you need to measure continuously in a short time,
there will be some slight differences when reading the temperature, which is normal. At this
time, please select the average temperature. We recommend that you measure
continuously for up to three times in one time unit, because the temperature of human body
will be transmitted to the thermometer, which may affect the accuracy of measurement.
- There is no absolute standard about the temperature of the human, so please try to collect
the recording of Individual temperature in the usual, as a reference for having a fever or not.
Notes:
- Do not touch the glass of the infrared lens with your fingers.
- Do not expose the thermometer to sunlight or to water.
- Never drop and impact the thermometer.
- The patent is an intended operator. The patient can measure, read data and replace
battery under normal circumstances and maintain the device according to the user manual.
- The working environment of the device is:Temperature:15℃(59.0℉)-40℃(104.0℉);
Relative humidity: 15%~95% RH; Atmospheric pressure: 70-106KPa. Please measuring
under these conditions.
- Do not expose this thermometer to extreme temperature conditions of ＞55℃(131.0℉)
or ＜-20℃(-4.0℉), relative humidity of ＞95%RH.
- Check the battery before use
Replace any low-voltage battery to ensure full power supply.

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- Check the sensor before use
If have pollution and spray, please clean it.
If the lens is damaged, please stop using.
- Before using, please check if the thermometer appearance is intact, if measurement
function is normal. if there any abnormal, stop using.
- Forehead temperature measurement:
Depending on various skin types and thickness, there may be temperature difference in
forehead temperature measurement.
5. Description of the TH10A
5.1 Intended use / Indication for use
Intended use / Indication for use: The infrared thermometer is intended for the
intermittent measurement and monitoring of human body temperature through ear canal or
through the center of the forehead(non-contact type) as the measurement site on people of all
ages.
The thermometers can be used in clinical and home environments.
[Intended users]
1. Adult
2. Have 8 years intensive reading experience
3. Can be read and understand the user manual
Contraindications:
No
Side effect:
No
5.2 Production structure

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No. Name No. Name
① LCD ⑥ Probe
② Measuring button ⑦ Ear/forehead mode switch
③ Mode button ⑧ Battery cover
④ Memory button ⑨ Unit switch button
⑤ Forehead cap ⑩ Battery compartment
5.3 LCD display instruction

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① 12Y-up mode ⑦ Temperature unit: Fahrenheit
② Calibration mode ⑧ Mute icon
③ Ear mode ⑨ Memory group number
④ Bluetooth symbol ⑩ Memory icon
⑤ Battery symbol ⑪ Temperature valuable
⑥ Temperature unit: Celsius ⑫ 12Y-down mode
6. Specifications
Device name Infrared thermometer
Model TH10A
Measurement mode Ear mode, Forehead mode；
Both the forehead and ear mode is adjusted mode
Both the forehead and ear mode include the sub-
mode of 12Y-down mode and 12Y-up mode.
Reference body site The forehead and ear mode is reference the oral

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temperature.
Clinical bias (△cb)of ear and
forehead mode
±0.1℃ (±0.2℉)
(Calculate according to ISO 80601-2-56-2017+A1:2018)
Limited of agreement (LA)of ear
and forehead mode
＜2.0℃ (＜0.4℉)
(Calculate according to ISO 80601-2-56-2017+A1:2018)
Clinical repeatability ±0.3℃ (±0.5℉)
Measurement range For ear and forehead mode: 32.0℃ (89.6℉)～
43.0℃(109.4℉)
Measuring accuracy
(for lab. condition)
For ear and forehead mode:
±0.2℃(±0.4℉): 35.0℃(95.0℉)~42.0℃(107.6℉);
±0.3℃(±0.5℉): 32.0 ℃(89.6 ℉)~34.9(94.8 ℉);
42.1℃(107.8℉) ~ 43.0℃(109.4℉)
Resolution of display 0.1℃(0.1℉)
Measuring distance for
forehead mode
(non-contact measurement)
1.0cm to 3.0cm
Power supply d.c. 3V, 2×1.5V AAA batteries
Memory function 9 groups memory
Low battery indicator 2.4±0.2V
Automatic shutdown function 10±2s;
Remark: Under the circumstance of displaying the Bluetooth
pairing code, the automatic shutdown time is 120
± 10s.
Operation environment
Temperature: 15.0℃(59.0℉) ~ 40.0℃(104.0℉);
Relative humidity: 15%~95%RH;
Atmospheric pressure: 70-106KPa
Storage environment
Temperature: -20.0℃(-4.0℉)~+55.0℃(+131.0 ℉);
Relative humidity: ≤95%RH;
Atmospheric pressure: 70-106KPa
High temperature hint For 12Y-up mode: ≥37.8℃(100.0℉)
For 12Y-down mode:≥37.7℃(99.9℉)
Dimensions 38×49.5×136mm
Weight Approximately 72g (not include batteries)
Grade of waterproof IP22
Electric shock Internally powered ME equipment
Applied part Type BF applied part, including the whole unit
Mode of operation Continuous operation
Product working life 3 years

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Software version Embedded software version of TH10A:V1.0.0
Bluetooth APP version: 1.0.1
Note: Not intended to be sterilized.
Not for use in an OXYGEN RICH ENVIRONMENT
Remark: 12Y-down mode is designed to measure the body temperature of people aged 12 and below, 12Y-up
mode is designed to measure the body temperature of people over 12 years old.
Note:
If you need to monitor a patient's temperature over a period of time, due to the same person's temperature can
vary at different times of the day, so it is recommended to monitor the human temperature for 3 times a day
(Measure once in the morning, noon and evening respectively), and take 3 measurements for each time and take
the average for reference.
Statement: ASTM laboratory accuracy requirements in the display range of 37 to 39℃(98 to 102℉) for IR
thermometer is ±0.2℃(±0.4℉), whereas for mercury-in-glass and electronic thermometers, the requirement per
ASTM Standards E667-86 and E112-86 is ±0.1℃(±0.2℉).
Differences in the accuracy of measurements obtained with IR thermometer versus contact thermometers (that is,
mercury-in-glass and electronic thermometers) are also related to operators’ technique, anatomical variations,
earwax buildups, subject cooperation. Please make sure to operate in accordance with this user manual to obtain
the accurate reading.
This infrared thermometer meets requirements established in ASTM Standard (E1965-98). Full responsibility for the
conformance of this product to the standard is assumed by Shenzhen Yolanda Technology Co., Ltd.(Address:
Room 201,Jinfulai Building, No.49-1, DabaoRoad,Dalang Area,Xinan Street,Baoan, Shenzhen, China).
7 wireless technology
7.1 Summary
The device have wireless transmission function through Bluetooth:
Through using smart phone to download and install Bluetooth APP, and binding the APP and
your thermometer, you can transfer the measurement data of the thermometer to APP for
storage through data upload operation, you also can check your measurement result history on
the APP.
Bluetooth is a wireless communications system that is designed to operate in short-range
wireless personal area networks.
The product supports the Smart (low energy) Bluetooth protocol. It operates in the spectrum
range 2.402 GHz to 2.480 GHz industrial, scientific and medical (ISM) band. Smart Bluetooth
uses 40 x 2 MHz channels. Within a channel, data is transmitted using GFSK shift modulation.
The bit rate is 1 Mbit/s and the maximum transmit power is 5 mW. The Smart Bluetooth protocol
uses frequency hopping to counteract narrowband and interference problems.
The specification of wireless transmission
For Bluetooth

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Bluetooth 5.1
Valid Transmission Up to 10 meters
Receiver Smart phones with Bluetooth 4.0 or above version, and,
Smart phones running Android 6.0 and iOS 10 or above
system
Signal transmission 2.4G Bluetooth
Frequency 2.402-2.480 GHz
Output power MAX +6dBm
7.2 Wireless Security
The Bluetooth App database include a Hash algorithm to protect data. Bluetooth Connections
include Smart (low energy) Bluetooth protocol 5.1.
The security measures taken address:
•Embedded software
•Bluetooth wireless technology
Users should not share their login details to others. Errors in the display or integrity of the data
transmit are a nuisance and will not interrupt function of the product.
7.3 Quality of Service (QoS)
When the product and connected device (i.e. Android 6.0 and iOS 10 or above system) are
within 10m,the wireless QoS needed for effective product communication in the APP is optimized
for Bluetooth. When the connected device has adequate sufficient Bluetooth connection, the
wireless QoS needed for effective product communication for transferring of data to APP is
optimized.
If the wireless signal is lost, the data transmission may be interrupted. Data latency and/or the
probability of loss of service creates an inconvenience only and does not affect operation of the
product and cannot inhibit the user’s measurement.
7.4 User actions and wireless communication delay or failure
The function of the product is not impacted if disruption of the Bluetooth wireless communication
occurs.
If the Bluetooth becomes disconnected from the product during use, remove the product from the
radio frequency (RF) field and wirelessly reconnect to their device.
if the user be concerned about the Bluetooth connection for any reason, the user only need to
disconnect the Bluetooth function on their smart phone.
7.5 Wireless Coexistence
Bluetooth connection adopts adaptive frequency hopping, which effectively alleviates the
wireless interference in the same frequency band.
If Bluetooth wireless communication is interrupted, the function of the product will not be affected.
If Bluetooth is disconnected from the product during use, remove the product from the RF area
and reconnect it wirelessly to the device.
Warnings

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Possible effects from RF sources in the vicinity of the device
 When using infrared thermometer with a smart device, relocate the devices away from
sources that may interfere with the Bluetooth. The presence of other devices that may
create radio frequency interference (RFI) may result in loss of Quality of Service of the
Bluetooth connection. Device may cause RFI include but are not limited to the following:
other cellular telephones, wireless PC and tablets, pagers, Bluetooth devices, device with
remote controls, electromagnetic security systems, RFID or other in-band transmitters.
 Please close the wireless function before used the thermometer for the persons with active
implantable medical devices (e.g., pacemakers, defibrillators, etc.).
 For safety use of the device, please update the security software of smartphone timely.
*Notes of cybersecurity:
 In order to prevent disclosure of your health condition, please do not disclose your user
registration information and password to others.
8. Battery Installation/Replacement
The thermometer is supplied with two 1.5V type AAA batteries. insert the batteries the to the
device when initial use;
When the battery warning symbol” ” appears, it means the battery is low.It is still
possible to measure temperature, the batteries shall be replaced. If the battery power is too
low，the battery symbol“”will flash for 3 times on the LCD, then the thermometer will
switch off automatically.
① Pull the battery cover off downwards.
② Remove the used batteries, insert two new batteries in the battery compartment
according to the indicated Negative pole and positive pole.
After inserting the two batteries, the LCD will self-check by full displaying for 3S, at the same
time, the buzzer send out a long “bi... ...” for 3S, at the same time the backlight display
“Cyan--Orange-Red”for 3S(The backlight of each color is displayed for 1s). Then the
thermometer will automatically shut down.
③ Close the battery cover.

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Notes:
● The two batteries supplied with the product can ensure the power consumption for at least
1000 times temperature measurements.
● When changing the batteries, use batteries of the same type and capacity.
● Always replace all batteries at the same time.
● Battery polarities should be correctly installed. The polarities are mark on the battery
compartment.
● Please remove the batteries if the thermometer will not be used for a long time(over 3
months).
9 Instruction for use
9.1 Ear temperature measurement
Before measurement, gently clean the ear canal (earwax) with a cotton swab to ensure the
measurement is accurate
1) Install the batteries (please refer to ”8 Battery Installation/Replacement”);
2) Take off the forehead cap to enter the ear mode(the Ear/forehead mode switch is open
state) , and the LCD will show icon to prompt if the device is powered on.
3) Insert the sensor tip carefully into the ear canal;

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Make sure that the probe and the ear canal are clean. As the ear canal is slightly
curved, please pull the ear slightly backwards before inserting the probe.This is
important so that the probe can be pointed directly at the eardrum.
4) Press the “ ” button for 1second then release the button,about 1 second later, the
measured value will be appeared on the display with a “bi---” sound
(If the buzzer sound
is turned on)
.
5) Take out the device from the ear for reading the result, the measurement result remains
on LCD for 3 seconds, then the “ ”signal will be displayed on the LCD , you can
make further measurement now.
If you need to make another measurement, repeat the steps above.
Important note!
The thermometer designed with 12Y-down mode and 12Y-up mode, 12Y-down mode is
used to measure the body temperature of people aged 12 and below, 12Y-up mode is used
to measure the body temperature of people over 12 years old.
LCD display means the current mode is 12Y-down mode, LCD display icon means
the current mode is 12Y-up mode. According to the age of the subjects, if your first
measurement use the wrong mode, please withdraw the value, and press the “”button
to select the correct mode, then perform a new measurement.
Warnings
- The ear measurement shall not be taken in an ear affected by inflammatory disease (e.g.
discharging pus or secretion), after possible ear injuries (e.g. eardrum damage) or in the
healing period after operative procedures. In all of these cases, please consult your doctor.
- External factors may influence ear temperatures, including when an individual has:
 Been laying on ear or other
 Had their ears covered

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 Been exposed to very hot or very cold temperatures, or
 Been recently swimming or bathing
In these cases, remove the individual from the situation and wait 30 minutes prior to taking
a temperature.
- Do not remove the thermometer out of the ear canal until you hear beep at the end of the
measurement.
- This thermometer may only be used without a disposable protective cover when
measuring the ear temperature.
- Do not use ear mode to measure forehead temperature, otherwise you may get the
inaccurate measurement.
- Do not use 12Y-up mode to measure the body temperature of people aged 12 and below,
Do not use 12Y-down mode to measure the body temperature of people over 12 years old,
otherwise the measurement results may be slightly biased.
Cautions:
- In order to measure the correct temperature value, make sure that the probe is aimed at
the eardrum and closely matched with the ear canal.
- Use the untreated ear if prescription ear drops or others ear medication have been placed
in the ear canal.
- Keep the probe tip surface clean, otherwise the measurement may not be accurate.
Notes:
- Some people produce different reading in their left and right ear. In order to record
temperature changes, always measure a person’s temperature in the same ear.
9.2 Forehead temperature measurement （non-contact measurement）
1) Install the batteries (please refer to ”8 Battery Installation/Replacement”);
2) Put on the forehead cap to the probe to enter the forehead mode(the Ear/forehead
mode switch is closed state), there should be no obvious gap after the cap is installed,
(The icon on LCD will disappear if the thermometer is powered on, this means that
the thermometer has successfully entered the forehead mode.)

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3) Aim measuring head with the forehead cap towards the middle part of forehead, make
sure that the distance between probe tip and forehead is 1~3cm. Press the “ ” button
for about 1 seconds then release the button, about 1 second later, the measured value
will appears on the display with a “bi---” sound
(If the buzzer sound is turned on) .
4) Take off the device for reading the result.
The measurement result remains on LCD for 3 seconds after finishing measurement, then
the “ ”signal will be displayed on the LCD , you can make further measurement now.
If you need to make another measurement, repeat the steps above.
Important note!
 Check if there is no icon on LCD, if a icon is on LCD, this means that you have not
successfully entered the forehead mode. Please withdraw the measured value and re-
cover the forehead cap to enter the forehead mode. Make sure that the LCD does not
have the icon, then measure the forehead temperature again.
 The thermometer designed with 12Y-down mode and 12Y-up mode, 12Y-down mode is
used to measure the body temperature of people aged 12 and below, 12Y-up mode is
used to measure the body temperature of people over 12 years old. LCD display
means the current mode is 12Y-down mode, LCD display icon means the current
mode is 12Y-up mode. According to the age of the subjects, if your first measurement
use the wrong mode, please withdraw the value, and press the “”button to select
the correct mode, then perform a new measurement.
Warnings

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- Do not use 12Y-up mode to measure the body temperature of people aged 12 and below,
Do not use 12Y-down mode to measure the body temperature of people over 12 years old,
otherwise the measurement results may be slightly biased.
Notes:
- Before measuring forehead, make sure there is no hair, sweat, cosmetic, perspiration or hat
on it.
- It is normal that there may be temperature difference depending on various skin types, since
different skin type will reflect different voltage of infrared ray.
- Avoid any drafts (e.g. form nasal specs, air conditioning…)
9.3 Temperature hint
Measurement mode Measuring temperature Backlight Buzzer sound LCD display
Ear mode
/Forehead
mode
12Y-up
mode
< 32.0℃(89.6℉) Red bi--- Lo
32.0℃(89.6℉) ~ 37.7℃(99.9℉) Cyan bi--- Measurement
value
37.8℃(100.0℉)~39.4℃(102.9℉) Yellow bi-bi-bi-bi
39.5℃(103.1℉)~43.0℃(109.4℉) Red bi-bi-bi-bi
＞43.0℃(109.4℉) Red bi--- Hi
12Y-down
mode
< 32.0℃(89.6℉) Red bi--- Lo
32.0℃(89.6℉) ~ 37.6℃(99.7℉) Cyan bi--- Measurement
value
37.7℃(99.9℉)~38.5℃(101.3℉) Yellow bi-bi-bi-bi
38.6℃(101.5℉)~43.0℃(109.4℉) Red bi-bi-bi-bi
＞43.0℃(109.4℉) Red bi--- Hi
Operation environment temperature < 15℃(59.0℉) Cyan bi--- Er1
Operation environment temperature ＞40℃(104.0℉) Cyan bi--- Er2
Note: The buzzer function in the table above is built when the buzzer sound is turned on.
9.4 Voice adjustment
On the power on status, press the “ ”button for 2s,the buzzer sound will be turned off，there
will be no buzzer sound during subsequent operations. Pressing the“ ”button for 2s again,
the voice function will be turned on with a “bi”sound.
9.5 Memory mode

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This device stores the last 9 sets temperature measurements. I f you want to get memory data,
please following the below to get it.
1) At turning on status, press the “” button, to enter the memory query mode and the
LCD will display the memory icon and first group of measurement data .
2) press the “” button repeatedly to switch a series of measurement data, memory
number will start from 1, 2,3,... .
3) Memory mode is automatically exited by turn off the device or you can press “ ”
button to enter the measurement mode.
Note: When the memory data is over 9 groups, the system will replace the oldest set.
The abnormal body temperature results cannot be stored too (such as Lo, Err or Hi).
All memory values will be deleted after the battery is removed.
9.6 Switch ℃ and ℉
This device is shipped with Celsius(℃)temperature scale activated. If you wish to switch to
Fahrenheit(℉) and/or back from Fahrenheit to Celsius, proceed as follows:
 Power on the device, remove the battery cover, move the “Unit switch button” to switch
the unit between ℃ and ℉, the LCD will display the selected unit.
 On power off status, move the “Unit switch button” can also switch the unit between ℃
and ℉, after power on the device, the LCD will display the selected unit.
9.7 Power off
If no operation after 10s±2s, the system will be switch itself off and LCD will be blank.
Under the circumstance of displaying the Bluetooth pairing code, if no operation after 120±
10s, the system will be switch itself off and LCD will be blank.