
HOTO Air Pump Pro


01. Safety Instructions
Warning!
Please carefully read all safety warnings, instructions,
illustrations, and prescriptions in the manual.
This product generates noise above 80 dB(A)
(1m distance from
the product)
when working.
Please exercise caution.
When working continuously for an extended period, the
product body and air tube may generate high temperatures.
Please allow them to cool down before using.
This product is not a toy, and children are prohibited from
using it.
1

Inflatable port
Heat emission hole
Lanyard
Control push knob
Unit adjustment knob
Type-C charging port
Lighting button
Display
Lighting burner
Power/Mode button
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3
4
5
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7
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9
10
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5
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10
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02. Product Introduction
Please read this guide carefully before using the product and keep
it for future reference.
Thank you for choosing HOTO Air Pump Pro.
The product image is for illustrative
purposes only. Please refer to
the actual product for details.
2

List of accessories
American air tube × 1
American air valve
Conversion air valve
×1
Inflation needle
×1
Type-C charger cable
×1
Storage bag
×1
Air tube
French valve adapter
×1
Quick-connection
valve adapter
×1
3

Battery indicator
Charging
Before using the product for the first time,
please ensure that it is fully charged. To charge
the air pump, connect the charger to the Type C
charging cable.
Indication
The product cannot be used while it is being charged. Please purchase a
safe and compliant charger.
Before using the product for the first time, please ensure that it is fully
charged using a charger that matches the product's c
harging power
through a charging cable.
03. Instructions for Use
Charging status
battery level<25% : Flashing
25%≤battery level<50% : Flashing
50%≤battery level<75% : Flashing
75%≤battery level≤99% : Flashing
Battery level = 100% : The indicator light is
long on and then off 20 seconds later
75%≤battery level :
50%≤battery level<75% :
25%≤battery level<50% :
battery level <25%:
4
Charging
is required

Power on/off
To turn on the product, press and hold the
"Power/Mode" button for 1.5 seconds while it is in
power-off mode.
To turn off the product, press and hold the
"Power/Mode" button for 1.5 seconds while it is in
power-on mode.
Note: If there is no operation within 3 minutes of the
product being in power-on mode, it will
automatically turn off.
To inflate, connect the American valve to the
American valve port of the high-pressure air
tube.
To deflate, use a suitable tool (e.g. 4mm hex
wrench) to press the inflation needle inside
the valve and release the air.
Mountain bikes, e-bikes, motorbikes,
electric scooters, and automobiles will
be equipped with American valves.
Connect the high-pressure air tube to the valve
American air valve
valve type
Inflatable port
5

Inflate: Connect the French valve adapter
to the American valve port of the
high-pressure air tube, unscrew the tyre’s
French valve screws, and connect the
French valve to the adapter.
Deflate: Unscrew the valve switch of the
French valve port and press down the
valve switch.
French valve adapters are required to
inflate road bikes and some mountain
bikes.
French air valve
Valve type
Inflatable port
To inflate, connect the American valve to
the American valve port of the
high-pressure air tube.
Connect the quick-connection valve
adapter to the American valve and press
the spanner in the direction shown in the
illustration to lock it to inflate.
Deflate: Connect the quick-connection
valve adapter to the American valve and
press the quick-connection valve.
Mountain bikes, e-bikes, motorbikes,
electric scooters, and automobiles will
be equipped with American valves.
Quick-connection air valve
Valve type
Inflatable port
6

Inflate: Insert the inflation needle into
the ball inflation hole after tightening
the needle and the American valve
port.
Deflate: Insert the inflation needle
directly into the ball inflation hole.
An inflation needle is required to
inflate balls such as basketballs and
footballs.
A "conversion air valve" is required to
inflate inflatables such as swimming
rings.
Inflation needle
Valve type
Inflatable port
Conversion air valve
Valve type
Inflatable port
0
.
8
b
a
r
1
2
p
s
i
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Attention
The inflation of balloons, leather toy balls, swimming rings and
other products with an inflatable pressure lower than the range of
air compressor cannot be automatically stopped by presetting
pressure. Please use the product with caution.

Air pressure detection
When the air compressor is on and the high-pressure air tube is
connected to the object of inflation pressure detection, the
number on the display of the air compressor is the current
pressure.
Inflation pressure check
To ensure safety, please check the required inflation pressure by
reading the manual of the product to be inflated before inflation to
avoid bodily injury and property loss due to explosion caused by
excessive inflation.
The recommended air pressure for tyres of
automobiles,
bicycles, electric scooters and
motorbikes is usually marked on the sidewall of the
tire. The guide air pressure for tyres of automobiles
is usually marked near the inside wall of the driver's
side door. The level of inflation pressure is related to
the weight of the load. For more detailed air
pressure recommendations, please refer to the
automobile manual.
Tyres
The inflation pressure of balls such as
footballs, basketballs and volleyballs is
usually marked around the inflation hole.
Balls
8

Recommended inflation pressure gage of common products
Reminder: The recommended inflation pressure range is for
reference only. Please refer to the requirements of the manual of
the product to be inflated.
Product
category
Bicycle
Motorbike
Motorbike and
electric motorbike tyres
1.8-3.0bar
Automobiles
Car tyres 2.2-2.8bar
Balls
Basketball
Football
Volleyball
Rugby
7-9psi
8-16psi
4-5psi
12-14psi
12-inch, 14-inch and 16-inch bicycle
tyres
20-inch, 22-inch and 24-inch bicycle
tyres
26-inch, 27.5-inch and 29-inch
mountain bike tyres
700c road bike clincher tyres
30-50psi
40-50psi
45-65psi
100-130psi
Product type
Recommended
pressure surface
9

Preset inflation pressure of tyres
Mode switching
Free mode (without any mode light-up): 35psi by default
Range of adjustment: 3-120psi
Motor car mode: 2.5bar by default
Range of adjustment: 1.8-3.5bar
Bike mode light-up: 45psi by default
Range of adjustment: 30-65psi
Motor bike mode light-up: 2.4bar by default
Range of adjustment: 1.8-3.0bar
Ball mode: 8 psi by default
Range of adjustment: 4-16psi
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Press the "Power/Mode" button to switch the following five
inflation modes on the display.

Lighting
burner
After selecting the profile, rotate the "control push knob"
clockwise to "+" and anti-clockwise to "-" to adjust the preset
pressure value. When adjusting the preset pressure value, the
flashing number indicates the adjustment status of target
pressure. After flashing for 5 seconds, the constantly bright
numbers indicate the real-time pressure.
Under the power-on mode, short press the "lighting
button" to turn on or off the lighting burner.
Unit switch
Poke the "unit adjustment knob" to switch between
bar/psi/kPa units.
After adjusting the preset mode, short press the
"control push knob" to start inflation;
During the infla
tion, the real-time pressure change is
digitally displayed.
Inflation
Start inflation
During the inflation, short press the "control push
knob" to suspend inflation;
When the air pressure reaches the preset pressure
value, the inflation will automatically stop.
Stop inflation
Fine adjustment of preset
11

The temperature of the air valve and tube upon inflation is high, so be
careful of scald when removing the valve. There will be a slight air leak
when removing. Please remove quickly to minimize the amount of
leaving air.
Reminder: All images of products, parts, and user interfaces in this
Manual are for illustration purpose only.
Due to the update and upgrade of the product, there may be some slight
differences between the actual product and the schematic diagram.
Products are subject to change.
Unscrew the air valve

1. This product is not a toy, and children are forbidden to use it. The minimum
recommended age for users is 16 years old. During the inflation, please keep
children at a safe distance from the air compressor.
2. The built-in lithium battery of the product cannot be disassembled. Do not throw
the product into the fire or discard it at will. Overheating and hitting of the lithium
battery and water damage to it may cause fire, autoignition, and explosion. Please
do not place the product in hot environments such as vehicles for long.
3. Do not keep the product at a temperature below -10°C or above 45°C, because
overcooling or overheating will shorten the product's life of service and damage the
built-in battery.
4. If the product is left idle for long, its battery may be damaged. Please charge the
product at least every three months. The product is equipped with a built-in direct
current machine, which may generate electric sparks when working. Please do not
use it in flammable and explosive environments.
5. Please turn off the machine immediately
if it makes a strange voice or overheats
when working.
6. Before setting the inflation pressure value, please make sure that the correct unit of
measurement is selected. Otherwise, it may lead to accidents such as flat tyres.
7. Common unit conversion: 1 bar ≈ 14.5 psi, 1 bar = 100 kPa, 1 psi ≈ 6.89 kPa. Please
do not leave during the inflation. Observe the inflation process to prevent the
inflation pressure from being too high in the event of no preset pressure value.
8. Please use the product in a dry and clean environment, as mud and dust intrusion
may l
ead to product damage. As the product is not waterproof, do not rinse the
product.
09. Please use a charger that matches the charging power of this product and a
compliant charging cable to charge the product. Failure caused by charging in
breach of the above requirements is not covered by the warranty.
10. After the air compressor works for a long time, the temperature of the connection
between the air tube and the body rises. Do not touch it to avoid scalds.
04. Precautions
13

General Power Tool Safety Warnings
Warning: Read all safety warnings and instructions. Failure to
follow the warnings and instructions may result in electric shock,
fire and/or serious injury.
Save all warnings and instructions for future reference.
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mains-operated (corded) power tool or battery-operated (cordless)
power tools.
Work Area Safety
Keep work area clean and well lit. Cluttered or dark areas invite
accidents.
Do not operate power tools in explosive atmospheres, such as in the
presence of flammable liquids, gases or dust. Power tools create sparks
which may ignite the dust or fumes.
Keep children and bystanders away while operating
a power tool.
Distractions can cause you to lose control.
Electrical safety
Power tool plugs must match the outlet. Never modify the plug in any
way. Do not use any adapter plugs with grounded power tools.
Unmodified plugs and matching outlets will reduce risk of electric shock.
Avoid body contact with grounded surfaces such as pipes, radiators,
ranges and refrigerators. There is an increased risk of electric shock if your
body is grounded.
Do not expose power tools to rain or wet conditions. Water entering a
power tool will increase the ris
k of electric shock.
14

Personal Safety
Stay alert, watch what you are doing and use common sense when
operating a power tool. Do not use a power tool while you are tired or
under the influence of drugs, alcohol or medication. A moment of
inattention while operating power tools may result in serious personal
injury.
Use personal protective equipment. Always wear eye protection.
Protective equipment such as a dust mask, non-skid safety shoes, hard
hat or hearing protection used for appropriate conditions will re
duce
personal injuries.
Prevent unintentional starting. Ensure the switch is in the off-position
before connecting to power source and/or battery pack, picking up or
carrying the tool. Carrying power tools with your finger on the switch or
energising power tools that have the switch on invites accidents.
Remove any adjusting key or wrench before turning the power tool on.
A wrench or a key left attached to a rotating part of the power tool may
result in personal injury.
Do not abuse the cord. Never use the cord fo
r carrying, pulling or
unplugging the power tool. Keep cord away from heat, oil, sharp edges
or moving parts. Damaged or entangled cords increase the risk of electric
shock.
When operating a power tool outdoors, use an extension cord suitable
for outdoor use. Use of a cord suitable for outdoor use reduces the risk of
electric shock.
If operating a power tool in a damp location is unavoidable, use a
residual current device (RCD) protected supply. Use of an RCD reduces
the risk of electric shock.
15

Power Tool Use And Care
Do not force the power tool. Use the correct power tool for your
application. The correct power tool will do the job better and safer at the
rate for which it was designed.
Do not use the power tool if the switch does not turn it on and off. Any
power tool that cannot be controlled with the switch is dangerous and
must be repaired.
Disconnect the plug from the power source and/or remove the battery
pack, if detachable, from the power tool before making any
adjustments, changing accessories,
or storing power tools. Such
preventive safety measures reduce the risk of starting the power tool
accidentally.
Store idle power tools out of the reach of children and do not allow
persons unfamiliar with the power tool or these instructions to operate
the power tool. Power tools are dangerous in the hands of untrained
users.
Maintain power tools and accessories. Check for misalignment or
binding of moving parts, breakage of parts and any other condition that
may affect the power
Do not overreach
. Keep proper footing and balance at all times. This
enables better control of the power tool in unexpected situations.
Dress properly. Do not wear loose clothing or jewellery. Keep your hair
and clothing away from moving parts. Loose clothes, jewellery or long
hair can be caught in moving parts.
If devices are provided for the connection of dust extraction and
collection facilities, ensure these are connected and properly used. Use
of dust collection can reduce dust-related hazards.
16

Battery tool use and care
Recharge only with the charger specified by the manufacturer. A charger
that is suitable for one type of battery pack may create a risk of fire when
used with another battery pack.
Use power tools only with specifically designated battery packs. Use of
any other battery packs may create a risk of injury and fire.
When battery pack is not in use, keep it away from other metal objects, like
paper clips, coins, keys, nails, screws or other small metal objects, that can
make a connection from
one terminal to another. Shorting the battery
terminals together may cause burns or a fire.
Under abusive conditions, liquid may be ejected from the battery; avoid
contact. If contact accidentally occurs, flush with water. If liquid contacts
eyes, additionally seek medical help. Liquid ejected from the battery may
cause irritation or burns.
Do not use a battery pack or tool that is damaged or modified. Damaged
or modified batteries may exhibit unpredictable behaviour resulting in
fire, explosion or risk of injury.
tool's ope
ration. If damaged, have the power tool repaired before use.
Many accidents are caused by poorly maintained power tools.
Keep cutting tools sharp and clean. Properly maintained cutting tools
with sharp cutting edges are less likely to bind and are easier to control.
Use the power tool, accessories and tool bits etc. in accordance with
these instructions, taking into account the working conditions and the
work to be performed. Use of the power tool for operations different from
those intended could result in a hazardous situation.
17

Do not expose a battery pack or tool to fire or excessive temperature.
Exposure to fire or temperature above 130 °C may cause explosion.
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.“F°
Follow all charging instructions and do not charge the battery pack or tool
outside the temperature range specified in the instructions. Charging
improperly or at temperatures outside the specified range may damage
the battery and increase the risk of fire.
Service
Have your power tool serviced by a qualified repair person using only
identical replacement parts. This will ensure that the safety of the power
tool is maintained.
Never service damaged battery packs. Service of battery packs should
only be performed by the manufacturer or authorized service providers.
18

Battery safety
Only use the battery approved by the manufacturer. Replacing with a
battery of wrong type may result in failure of safety protection, causing an
explosion or fire.
Do not place the battery in an environment with an extremely high
temperature, such as in direct sunlight, fire, microwave oven, or oven.
Otherwise, it may result in an explosion or leakage of flammable liquids or
gases.
Do not disassemble, impact, squeeze, or cut the battery, as it may result in
an explosion.
Do not subject the batt
ery to extremely low air pressure. Otherwise, it may
result in an explosion or leakage of flammable liquids or gases.
Stop using the battery immediately if there is any swelling.
Do not swallow the battery to avoid chemical burns.
If you believe that the battery may have been swallowed or placed
anywhere inside the body, seek medical aid immediately.
Stop using the air compressor if its battery compartment is not closed
safely. Keep it away from children.
Keep new and used batteries away from children.
Do not dispose of the batteries as household waste. Dispose of them
safely as per loca
l laws and regulations.
19

06. Troubleshooting
Faults
Slow inflation
Failure to
turn this product on
Failure to inflate
under the
power-on mode
Incorrect unit
displayed
Check whether the unit switch button is poked in
place
Solutions
Failure to adjust preset
pressure up or down
Press and hold the "power" button to turn on the
product again
Automatically power-on
of the air compressor
after screwing the valve
Tighten the air tubeAir leakage when
connecting air tube
Low-pressure inflatable products such as balloons are
not included in the measurement range of the device
Normal inflation but zero
pressure displayed
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1.Whether the power is sufficient 2. Check whether the
air tube is leaking 3. Check whether the connecting
parts at both ends of the air tube are screwed tight 4.
Check whether the inflated object is leaking
Turn on the machine after it is fully charged.
1. Check whether the power is sufficient
2. Check whether the current tyre pressure is higher
than the preset pressure
Check whether the product is in an incorrect profile,
select the free mode without any icons lighting on to
adjust the preset value within a range of 3-120psi

07. Basic Parameters
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Name: HOTO Air Pump Pro
Model: QWCQB003
Size: About 192.45×128.35×55.5mm
Weight: About 850g
Charging temperature: 5°C-40°C
Operating temperature: -10°C-45°C
Storage temperature: -10°C-45°C
Length of air tube: 700mm (including the American air valve port,
excluding the thread)
Battery type:Lithium-ion battery
Battery capacity:2500mAh 27Wh (rated value 2400mAh 25.9Wh)
Working noise: About 80dB(A)(1m distance from the product)
Rated input: 5V 3A
Nominal voltage: 10.8V
Charging time: About 3h
Inflation pressure: 0.2-8.3bar/3-120psi
Declaration of the noise emission values according to EN 62841
(considered uncertainty 3dB(A))
Sound pressure level: 79.3dB(A)
Sound power level: 88.4dB(A)
Declaration of the vibration emission according to EN 62841
(considered uncertainty 1.5m/s²): 3.70m/s²

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The declared vibration total value and the declared noise emission
value have been measured in accordance with a standard test method
and may be used for comparing one tool with another;
The declared vibration total value and the declared noise emission
value may also be used in a preliminary assessment of exposure.
Information:
The vibration and noise emissions during actual use of the power tool
can differ from the declared values depending on the ways in which
the tool is used especially what kind of workpiece is processed; and
It is necessary to identify safety measures to protect the operator that
are based on an estimation of exposure in the actual conditions of use
(taking account of all parts of the operating cycle such as the times
when the tool is switched off and when it is running idle in addition to
the trigger time).
Warning:
The battery is undetachable.
Notes for packaging
The packaging materials are recyclable. Please dispose of
packaging in an environmentally friendly manner.

08 Regulatory Compliance Information
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Europe — EU declaration of conformity
Disposal and recycling information
We, Shanghai HOTO Technology Co., Ltd., hereby, declare
that this equipment is in compliance with the applicable
Directives and European Norms, and amendments.
All products bearing this symbol are waste electrical and
electronic equipment (WEEE as in directive 2012/19/EU)
which should not be mixed with unsorted household waste.
Instead, you should protect human health and the
environment by handing over your w
aste equipment to a designated
collection point for the recycling of waste electrical and electronic
equipment, appointed by the government or local authorities. Correct
disposal and recycling will help prevent potential negative consequenc-
es to the environment and human health. Please contact the installer or
local authorities for more information about the location as well as
terms and conditions of such collection points.

24
Federal Communications Commission Supplier’s
Declaration of Conformity
This supplier’s declaration of conformity is hereby for Product: OTO
Air Compressed Machine.
Model Number(s): QWCQB003
Brand/Trade: HOTO
We declare that the above mentioned device has been tested and
found in compliance with CFR 47 Part 15 Regulation.
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 inter
ference that may cause
undesired operation.
Note: 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. This limits air designed to provide reasonable protection
against harmful interference in a frequency energy and, if not
installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, here is no
guarantee that interference will not occur in a p
articular 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.

25
·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.
Representative of Responsible Party for SDoC
Manufacturer: Shanghai HOTO Technology Co., Ltd.
Address: Building 45, No.50 Moganshan Road, Shanghai, China
Company: HOTO (US) TECHNOLOGY CO LTD
Address: 919 North Market Street, Suite 950, Wilmington DE 19801
Country: U.S.A.
Customer Service(US): +1 855-577-2659
Mon-Fri 9:00am-5:00pm(CST)

26
Shanghai HOTO Technology Co., Ltd.
Building 45, No.50 Moganshan Road, Shanghai, China.
DECLAR ATION OF CONFORMITY
Shanghai HOTO Technology Co., Ltd.
Declare that the product:
HOTO Air Pump Pro/QWCQB003
EU Declaration of Conformity We
Complies with the essential health and safety requirements of the
following directives:
2014/30/EU Electromagnetic Compatibility directive References to the
following harmonized standard were made:
EN55014-1:2021
EN55014-2:2021
ENIEC 61000-3-2:2019+A1:2021
EN 61000-3-3:2013+A2:2021
2011/65/EU+ (EU) 2015/863 Restrictions of the Use of Certain Hazardous
Substances in Electrical and Electronic Equipment
Authorised signatory and technical file holder:

27
The packaging materials are recyclable. Please dispose of packaging
in an environmentally friendly manner.
Notes for packaging
All products bearing this symbol are waste electrical and electronic
equipment (WEEE as in directive 2012/19/EU) which should not be
mixed with unsorted household waste.
Instead, you should protect human health and the environment by handing
over your waste equipment to a designated collection point for the recycling
of waste electrical and electronic equipment, appointed by the government or
local authorities. Correct disposal and recycling will help prevent potential
negative consequences to the environment and human health. Please contact
the installer or local authorities for more information about the location as
well as terms and conditions of such collection points.
Disposal and recycling information

