LEYU Leyu1 User manual

LEYU SMART BODY INFRARED THERMOMETER
USER MANUAL

CONTENTS
1、Product Overview
2、Download Leyu Baby APP
3、Use Thermometer Alone
4、Use with APP
5、Notice During Measurement
6、Measure Surface Temperature
7、Notice Before Measurement
8、Features
9、Specifications
10、Maintenance
11、Environmental Protection
12、Use of Battery
13、Battery Installment and Change
14、Adherence to EMC Test Standards
15、After-sale Service
16、Caution

MODEL: Leyu1
Lanyard Joint
ButtonLED Indicato
r
Tem
p
erature Probe

1. Product Overview
Leyu, with adorable shape, pocket size and easy operation, is a
specially designed non-contact infrared thermometer for infants and kids.
It measures temperature quickly, within 1s. LED light indicates precisely
different temperature with different colors. A combined use with the
APP--Leyu Baby can provide smart service, such as voice broadcast,
automatic data record, temperature trend analysis, online doctor, online
appointment, growth record, Leyu community, Cloud Sync to users. Leyu
will take comprehensive care of all babies.
2. Download Leyu Baby APP
Apple iPhone needs to support Bluetooth 4.0, install iOS 7 or above.
iPhone 4S, iPhone 5/5S/5C, iPhone 6/6Plus, iPhone 6S/6S Plus, iPad 3/4,
iPad Mini 1/2, iPad Air.

3. Use Thermometer Alone
Point the thermometer at forehead or behind ears, and press the
button to measure. The blue LED will flash during measurement. When
measurements is finished, LED will stop flashing, and green, yellow or
red LED will long light for 5 seconds.
1) When temperature is below 37.5℃, green LED is on to indicate
normal temperature.
2) When temperature is 37.6℃~38.5℃, yellow LED is on to indicate
mild fever.
3) When temperature is 38.6℃~42.0℃, red LED is on to indicate high
fever.
Start the APP after measurement, and press the button, temperature data
will be synchronized to mobile phone automatically.
Note: Thermometer can store up to 30 pieces of data, and they will be
wiped after the synchronization to mobile phone.

4. Use with APP
1) Start the APP and login, and enter into measuring interface.
2) APP detects Bluetooth connection automatically and prompts users to
operate as below:
Turn on Bluetooth
Users need to change to settings interface on their mobile phones and
start Bluetooth.
Turn on Leyu thermometer
Users need to press the button on thermometer, blue LED light flashes,
Bluetooth connects automatically, and APP prompts
Connected with Leyu thermometer
Point Leyu at measuring parts, press the button on thermometer or touch

the button on APP to take temperature. Users can also photograph baby’s
state by touching the photo button onAPP.
After Bluetooth is successfully connected, APP will display and broadcast
synchronously and store automatically measurement data. In daily
measurements, users only need to keep the Bluetooth activated and take
measurement directly after start APP.
5. Notice During Measurement
Right operation is the key to accurate measurement. Infrared thermometer
is demanding to ambient temperature, so please pay attention to following
items:
1) Point the thermometer vertically at the middle of forehead and
between eyebrows. Measuring part cannot be covered by hair, sweat,
or cap, etc., and make sure measurement distance is 1~4cm.
2) If the object undergoes large temperature difference, for example from
low temperature outdoor to high temperature indoor, the measurement
needs to wait 5~15mins until body temperature is consistent with
ambient temperature.
3) The measurement cannot be taken in the place of large air flow, such
as air-conditioner outlet or near blowing fans.
4) If the thermometer is taken from a different temperature place, it needs

to be stabilize for 20~30mins in measurement environment.
5) Users should avoid to measure temperature after temperature-lowering
steps, since cold compress or sweating will lower temperature.
6) If forehead measurement cannot reflect accurately actual temperature
due to external factors, measurement can be taken behind ear.
6. Measure Surface Temperature
Point Leyu at object, press the measurement button on thermometer, or
touch the button on APP to measure surface temperature.

Note: The temperature of feeding bottle, bath water and room temperature,
except body temperature, are surface temperature. LED light colors
change merely along with body temperature, and surface temperature is
subject to the reading displayed on APP.
7. Notice Before Measurement
1) Please read user manual before use.
2) Operation temp.: 15~35℃; operation RH: 20%~80%RH.
3) Do not expose this thermometer to extreme temperature (<-20℃
or >50℃) or high humidity environment (>85%).
4) Keep measuring distance 1~4cm.
5) Keep the thermometer away from high voltage and strong magnetic
field in case of electric shock.
6) Do not use the thermometer outdoor or under strong sunlight.
7) Waterproof grade IP65 can protect the thermometer from water. Its
performance will not be affected though falls into water but taken out
quickly. Do not immerse the thermometer in water for a long time.

8) Do not measure at once after washing face or cold compress.
9) Do not measure near air-conditioner outlet or blowing fans.
10) Temperature will vary from one to one because of skin thickness and
complexion.
Important Notice:
1) Use of this thermometer cannot replace in any case doctor’s diagnose.
2) Do not contact skin during measurement. The optimum distance is
2cm.
3) If there is any problem, please contact distributor. Do not disassemble
and repair on your own.
8. Features
1) Non-contact, safe, hygienic
2) Fast measurement, less than 1s
3) Easy operation, one-button measurement
4) Pocket size, convenient to carry
5) Small caliber, precision aiming at measuring part
6) 3-color LED, precise indicator of temperature
7) IP65 waterproof and 1m drop protection
8) More smart service in combination with APP

Explanation of Symbols：
3V DC power supply
Type B equipment
Caution
Non-ionizing radiation
9. Specifications
Resolution 0.1℃
Body Temp. Range 35.0℃~42.0℃
Surface Temp. Range 0℃~100℃
Accuracy
±0.3℃(35.0℃~35.9℃)
±0.2℃(36.0℃~39.0℃)
±0.3℃(39.1℃~42.0℃)
Measuring Distance 1~4cm
Temperature Indicator Green/Yellow/Red LED
Spectral Response 6~14um
Power Off 3mins (online); 15s (offline)
Storage Temp. -10℃~60℃
Operation Temp. 15℃~35℃
Battery 3V button battery (CR2032)
Frequency 2.4GHz
Transfer Mode Full-duplex bi-direction communication
Frequency Characteristic 250ms broadcast interval; 100ms connect interval
Effective Radiated Power 0dbm
Wireless Connection Bluetooth 4.0

10. Maintenance
1) Probe, the most intricate part, must be kept clean and intact.
2) Clean the device with a soft dry cloth moistened with moderate
amount of alcohol.
3) Do not use corrosive cleaner and do not immerse the device into water
or other fluid.
4) Keep the device in cool and dry place
11. Environmental Protection
1) Do not dispose the device and its accessories as common living
garbage.
2) Please observe local statutes about the disposal of the device and its
accessories, and support recycle.
12. Use of Battery
Red LED lights will flash continuously and go out when press the button
on device if battery power is low. Please change a new 3V (CR2032)
battery.
LED will not light up when press the button if battery power runs out.
Please change a new battery.
1) Turn on battery cover (or with a coin), and change battery.
2) Remove battery from the device if it is not going to be used for a long

time to extend battery life and to avoid damage to the device for due
to leakage.
3) Please note battery polarity. Wrong placement may cause damage to
the device.
4) Do not let kids and pets swallow the battery in case of any danger.
5) Do not damage, place or discard randomly the battery in case of
leakage, overheat, firing or explosion.
13. Battery Installment and Change
Insert a coin into the fillister, rotate counterclockwise to position as
shown in Picture 2, and remove battery cover. Put battery into battery
cabin with positive polarity upwards, install the cover back and rotate
clockwise to position as shown in Picture 1.
battery coverfilliste
r
b
atter
y
cabin

14. Adherence to EMC Test Standards
Electromagnetic Emission Guidelines and Statements—Non Life Support Equipment and System
The device must be used in regulated electromagnetic environment as below.
Emission Test Conformity Electromagnetic Environment-Guidelines
Radio-frequency
Emission CISPR 11 Group 1 The device uses radio-frequency energy only when running inside functions, so its low RF
emission will not cause electromagnetic
interference to any electronic equipment nearby.
Radio-frequency
Emission CISPR 11 Class B The device can be used at home and connected to public housing low voltage power supply
network.
Harmonic Radiation
IEC61000-3-2 N/A
Voltage Fluctuation
and Flicker
Radiation
N/A
Electromagnetic Susceptibility Guidelines and Statements
The device must be used in regulated electromagnetic environment as below.
Susceptibility Test IEC 60601
Level Test/Conformity Level Electromagnetic Environment-Guidelines
Electrostatic Discharge
(ESD) IEC 61000-4-2
±6 kV contact discharge
±8 kV air discharge It must be wooden floor, concrete floor or ceramic tile floor. RH must be at least 30%
if there is synthetic material on the floor.
Electrical Fast Transient
(EFT) IEC 61000-4-4 N/A Network power supply quality must be a typical business or hospital environment.
Surge IEC 61000-4-5 N/A
Voltage Drop, Short
Interruption and Change
IEC 61000-4-11
N/A Network power supply quality must be a
typical business or hospital environment. If
the device needs to keep running during
power interruption, we recommend UPS.
Power Frequency
Magnetic Field
(50/60Hz) IEC
61000-4-8
3A/m It must be a electrical level in typical
business or hospital environment.
Note: UT refers to alternating network voltage before applying testing voltage

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Recommended Distance Between the Device and Portable/Mobile RF Equipment
The device can be used in electromagnetic environment where RF interference is controlled. To avoid
electromagnetic interference, users are advised to keep distance between the device and portable/mobile
RF communication equipment. Following recommended distance is calculated in accordance with
maximum output power of communication equipment.
Emitter’s Rated Max
Output Power (W)
Isolation Distance (m) Based on Emitter’s Frequency
150kHz~2MHz
d=1.2√P 80MHz~800MHz d=1.2√P 800 MHz~2.5GHz d=2.3√P
0.01 0.12 0.12 0.23
0.1 0.37 0.37 0.74
1 1.17 1.17 2.34
10 3.69 3.69 7.38
100 11.67 11.67 23.34
If the rated output power is not included in above figure, the isolation distance can be reckoned with
corresponding formula. P in formulate is emitter’s rated output power provided by manufacturer (Unit:
W).
Note 1: Adopt high frequency formula when frequency is 80MHz~800 MHz
Note 2: Above guidelines do not apply to all situations, because material structure, object and crowd can
absorb and reflect electromagnetic waves, and hence affect electromagnetic propagation.
15. After-sale Service
We will answer any of your questions about Leyu at the first moment.

16. Caution:
This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates uses
and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
-Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
-Consult the dealer or an experienced radio/TV technician for help.
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 modifications not expressly approved by the party
responsible for compliance could void the user's authority to operate the
equipment.