
EN
ORAL IRRIGATOR
Translation of the original manual
SOI 1310BL
SOI 1311GD

SOI 1310BL
SOI 1311GD

A
1
2
3
4
5
6
7
8
9
10
11
12 13 14 15 16

B1
C
B2

D

- 1 -
06/2025
2025, .
EN
Oral irrigator
User Manual
IMPORTANT SAFETY INSTRUCTIONS
READ CAREFULLY AND STORE FOR FUTURE USE.
• Oral irrigators may be used by children 8 years of age and older
and by persons with physical, sensory or mental impairments or by
inexperienced persons, if they are properly supervised.
• Children must not play with the appliance. Cleaning and
maintenance must not be performed by unsupervised children.
• If the charging cable is damaged, have it replaced in aprofessional
service centre in order to prevent adangerous situation. It is
forbidden to use the appliance with the charging cable damaged.
• Oral irrigators must only be used with cold or hot water or with
special solutions defined inthis manual.
• Parts of the appliance that need to be fixed or erected must be fixed
or erected in such away that they cannot fall into the water.
Caution:
The appliance must only be used with the original
charging cable supplied with the appliance. To avoid
adangerous situation, do not use other types of
charging cable.
• The appliance may only be powered using asafe small voltage
corresponding to the designation on the rating label of the appliance.
• The power adapter is not supplied.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADDITIONAL IMPORTANT SAFETY
INSTRUCTIONS FOR USE OF THE APPLIANCE
Electrical Safety
• Do not place the power cord over sharp objects. Make sure that the
cable does not hang over the edge of atable or touch ahot surface.
• Never use the charging cable supplied withthis appliance for other
purposes.
• Keep the charging cable dry.
• Do not wind the charging cable around the handle of the appliance.
• Do not connect or disconnect the charging cable with wet hands.
• Before connecting the appliance to apower socket, check that the
nameplate rated voltage matches the voltage of the power socket
the appliance is to be connected to. Do not use an extension cord.
ORAL IRRIGATOR

- 2 -
06/2025
2025, .
• Store, charge anduse the appliance at an ambient temperature of 15
°C to 35 °C. Do not charge the appliance for longer than necessary
to fully charge it. After charging, disconnect it from the power source.
• Do not expose the appliance to temperatures above 50°C.
Otherwise damage to the built-in battery may occur.
• The appliance is equipped with abuilt-in battery with along service
life, which can only be removed by aprofessional service. Never
attempt to remove it from the appliance aswitch for anew one by
yourself.
WARNING:
Never disassemble the appliance in order to remove
the battery. Do not short-circuit the appliance or
throw it into afire. There is arisk of leakage of toxic
substances, fire or explosion if improperly handled.
• Do not charge, use, store or leave the appliance in abathroom or
any place where it could fall into abathtub, wash basin or any other
container filled withwater.
• If the appliance was connected to amains socket via power adapter
and it falls into water, underno circumstances should you touch it,
but immediately disconnect the power adapter from the socket.
Safety in Use
• This oral irrigator is designed exclusively for thecleaning of teeth
and the oral hygiene of people. The oral irrigator is not intended for
commercial purposes or forbrushing animals' teeth.
• Use the oral irrigator and its individual attachments in accordance
with the instructions in this manual.
• If you have recently undergone intensive surgery such as tooth or
gum surgery, have had long-term dental problems, or if you suspect
dental problems (fillings, crowns, etc.), consult your dentist before
using the oral irrigator.
• If you experience bleeding gums after using the oral irrigator and if
the bleeding persists after 2 weeks of use, contact your dentist.
• In case of any health concerns, contact your dentist before using
the oral irrigator.
• If any damage to the oral irrigator (handle or mains adapter) occurs,
stop using it.
• Use only the original accessories supplied with this oral irrigator. Do
not use attachments other than those supplied by the manufacturer.
• The oral irrigator andits power adapter must only be used indoors.
Do not use it outdoors.
• Avoid using the oral irrigator inrooms where aerosol dispensers are
used or where oxygen is administered.
• Do not expose the oral irrigator and its accessories to the outdoor
environment, extreme temperatures, direct sunlight, excessive
humidity or excessive dust.

- 3 -
06/2025
2025, .
• Do not place the appliance and its accessories near heaters, open
fire or other sources of heat.
WARNING:
Keep the oral irrigator dry.
• Before each use, make sure that the oral irrigator and its accessories
are not damaged. Never use an oral irrigator with adamaged
attachment.
• The oral irrigator may heat up when used or recharged. This is
acompletely normal event.
• Do not apply too much pressure to the end of the nozzle attachment.
• To avoid injury, do not fill the tank with hot water. Do not insert any
objects into the tank.
• Do not point the nozzle of the attachment under the tongue, in the
ear, nose, eyes or other sensitive areas, as this could cause injury.
• Do not clean thenozzle attachments, the handle, the mains adapter
or the water tank in thedishwasher or microwave.
• Always switch off and unplug the oral irrigator when not in use,
when left unattended and before attaching, removing or replacing
the attachment, cleaning, maintenance or storage. Store the oral
irrigator andits mains adapter inadry environment.
• Keep the oral irrigator clean. Perform the cleaning and maintenance
following the instructions in the Cleaning and Maintenance section.
• Do not perform any maintenance on the oral irrigator other than
cleaning its individual components as described in the Cleaning and
Maintenance chapter.
• Do not use the oral irrigator if it has been dropped on the floor, does
not function properly or is damaged in any way.
• To avoid ahazardous situation, do not repair or modify the oral
irrigator or its accessories yourself. Contact an authorised service
centre for all repairs. Tampering with the appliance may result in the
loss of your legal rights regarding faulty performance or warranty
for quality.

- 4 -
06/2025
2025, .
Special Safety Instructions for the Li-ion Battery
• The Li-ion battery is built into the oral irrigator andis an integral part
of it, which the user is not allowed to remove.
• Follow all the instructions provided in this user'smanual.
• Inthe event of abattery fluid (electrolyte) leak, do not touch
the battery with your bare hands. Use protective aids (gloves,
aprotective mask, goggles, etc.). The liquid inside the battery is toxic
andmay cause health problems even with slight contact of the bare
skin withit.
• We recommend opening windows or doors to ensure adequate
ventilation of the space.
• Contact aspecialist hazardous waste disposal company or use
ahazardous waste collection facility. Do not dispose of the damaged
battery or accumulator in ordinary household waste.
• In case of skin or eye splashes, rinse with plenty of water and seek
medical attention. If ingestion occurs, seek immediate professional
medical help.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EXPLANATION OF SYMBOLS PLACED ON
THE PRODUCT OR INTHE ACCOMPANYING
DOCUMENTATION
The product meets all the basic requirements of the
applicable EU directives.
This symbol on products or original documents means that
used electric or electronic products must not be added to
ordinary municipal waste.
This symbol on the accumulator or battery means that
the used battery must not be added to normal municipal
waste.
Thoroughly read the all the instructions before using the
product.
Protection level against harmful water ingress:
IPX7 – The device is protected against harmful ingress of water when
submerged to adepth of 1 meter for aperiod of 30 minutes.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

- 5 -
06/2025
2025, .
EN
Oral irrigator
User Manual
• Thank you for purchasing our SENCOR product; we hope it will
serve to your satisfaction.
• Prior to using this appliance, please read the user manual
thoroughly, even in cases when you are already familiar with
the use of similar types of appliances. Use the appliance only as
described in this user manual. Keep the manual for future reference.
If you pass the appliance on to another person, ensure that this user
manual is included.
• Carefully unpack the appliance and make sure not to discard
any part of the packaging material until you have removed all
components of the appliance. It is recommended that you keep
the original packaging, packing material, receipt and confirmation
of the extent of the seller'sliability or warranty certificate at least
for the duration of the legal right to file adefect claim or the quality
warranty. When transporting the appliance, we recommend
repackaging it in the original box provided by the manufacturer.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DESCRIPTION OF THE ORAL IRRIGATOR
A1 Nozzle attachment (2pcs)
A2 Hole for extensions
A3 On/Off button
A4 Display
A5 Mode switch
A6 Water tank
A7 Nozzle attachment release
button
A8 Charging socket with cover
A9 Tank filler cap
A10 Oral irrigator base
A11 Charging cable
A12 Standard jet tip (1pc)
A13 Periodontal jet tip (1pc)
A14 Tongue jet tip (1pc)
A15 Orthodontic jet tip (1pc)
A16 Nasal nozzle jet tip (1pc)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INTENDED USE
• The oral irrigator is designed only fororal hygiene. It helps toremove
bacteria from the interdental spaces and the folds of the gum
around the teeth, quickly andgently removes food debris from
the interdental spaces, while effectively massaging your gums.
Incombination withcareful brushing, it helps you to actively care for
thehealth of your teeth. The oral irrigator is intended for household
use and is not designed for commercial or other professional
applications.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

- 6 -
06/2025
2025, .
BEFORE FIRST USE
• Wash the appliance under running water.
• Rinse the water tank above the sink several times andfill it with
clean water according to chapter Filling the Water Tank. Insert the
attachment into the oral irrigator according to the chapter Attaching
andRemoving the Attachment. Point the nozzle of the attachment
into the sink andturn on the oral irrigator with the
button. Select
one of the modes with the mode switch andlet the water flow
through the nozzle for awhile to flush both the suction tube and the
nozzle of the attachment.
• Pour the remaining water out of the tank andleave the filling hole
cover open to allow the tank to dry out.
• Wipe the oral irrigator with adry cloth.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHARGING THE ORAL IRRIGATOR
• The oral irrigator is equipped with abuilt-in Lithium-ion battery that
serves as an internal power source andallows cordless operation of
the oral irrigator. Allow the battery of the oral irrigator to fully charge
first before first use or after along period of non-use. It takes about
2–3hours to fully charge the battery. Use only the original supplied
charging cable to charge.
• Remove the charging socket cover andconnect the connector of the
charging cable to it. Plug the loose terminal into asuitable mains
adapter (not included).
• While the oral irrigator is charging, the battery symbol flashes on the
display. When it stops flashing, the oral irrigator is fully charged.
• Disconnect the cable from the power socket andthe charging
source. Slide the cover back into the slot.
• If the battery symbol flashes during the operation of the oral
irrigator, it means that the oral irrigator is almost discharged and it is
necessary to charge it.
Warning:
There must be no moisture around the charging
socket or its cover. Therefore, it is recommended to
wipe the area with adry cloth before plugging in the
charging cable.
Caution:
Do not leave the oral irrigator connected toan
external power source longer than it takes to fully
charge it.

- 7 -
06/2025
2025, .
Note:
During charging, the use of the oral irrigator is blocked
andcannot be started.
• Recommendations on how to achieve the longest possible battery
life:
– To keep the built-in battery working for as long as possible,
charge, use andstore the oral irrigator at an ambient temperature
of 15–35 °C inadry environment. Lower or higher temperatures
adversely affect the life of the battery.
– Do not wait until the battery is completely discharged. It is better
to recharge the battery before it is fully discharged.
– If you do not use the oral irrigator for along time, charge the
battery at least once every 6 months.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FILLING THE WATER TANK
1. Open the tank filler cap.
2. Pour clean water into the tank.
3. Close the cover tightly.
Caution:
The water should be at acomfortable temperature.
Do not use water hotter than 40 °C.
Note:
If the tank filler cap falls out of theholder, place the cap
gasket against the filler cap, pushing gently until you
hear aclick.
Tip:
In addition to clean water, you can also use mouthwash
or its solution to fill the water tank. Using amouthwash
makes using oral irrigator even more effective. However,
do not use mouthwashes containing isopropyl
myristate or ahigh concentration of essential oils. These
substances are included in themouthwashes sold in
glass andceramic containers andcould damage the
water tank as well as the internal parts of the oral irrigator.
Mouthwashes containing substances harmless to the oral
irrigator are sold inplastic containers.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

- 8 -
06/2025
2025, .
ATTACHING ANDREMOVING THE ATTACHMENT
• Insert the attachment perpendicularly into the opening atthe top of
the oral irrigator – see figureB1. Hold the oral irrigator so that the
button is not pressed.
• To remove the attachment, press andhold theA6 button and remove
the attachment perpendicularly upwards fromthe hole – see FigureB2.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OVERVIEW OF OPERATING MODES
• The oral irrigator is equipped with five operating modes.
SOFT mode: suitable for people withsensitive teeth andfor
those who use the oral irrigator for the first time.
CLEAN mode: suitable for everyday use.
WHITE mode: suitable forthorough cleaning.
MASSAGE mode: mode formassaging teeth andgums.
SETUP mode: amode in which you set your own water
pressure/speed as needed. For more information, please
refer to “Mode SETUP” chapter.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
USING THE ORAL IRRIGATOR (Fig. C)
• Check that the oral irrigator is properly assembled, charged and the
water tank is full.
• Brush your teeth andgums and rinse your mouth with clean water.
1. Slide the attachment into the open mouth andlean over the sink so
that water andrinsed food remains can flow out.
2. Turn on the oral irrigator with the
button.
3. Select one of the preset modes with the mode switch.

- 9 -
06/2025
2025, .
4. Direct the stream of water to the place you want to spray, i.e. to the
interdental spaces, the edges of your teeth or to your gums.
5. Move the attachment nozzle slowly fromone interdental space to
another. In this way, clean all the outer andinner sides.
6. Thoroughly spray around braces, crowns andbridges.
7. When massaging the gums, aim the nozzle perpendicularly to the
gums andspray the gum line.
8. The oral irrigator is equipped with atimer that automatically turns it
off after two minutes of operation. If you need to switch off the oral
irrigator earlier, press the button.
9. Remove thenozzle attachment from the mouth when the oral
irrigator is switched off.
Caution:
Make sure the attachment is not damaged
before each use. Never use an oral irrigator with
adamaged attachment.
Note:
The oral irrigator will start in themode in which it was used
for more than 10seconds before you last turned it off.
• As soon as no water comes out of the nozzle, the water tank
is empty. Turn off the oral irrigator with button and add
water following the instructions in the "FILLING THE WATER
TANK" section. When the oral irrigator is turned on again, it will
automatically start in thelast selected mode.
• When used for the first time, it'srecommended to use the SOFT
operating mode.
Caution:
During the first few uses of the oral irrigator, you
may notice slight bleeding from thegums. This
is anormal phenomenon andusually stops after
1–2weeks.
Caution:
Consult the use of an oral irrigator with your
attending physician if you notice heavy bleeding
from the gums, have undergone amedical
procedure in the oral cavity, have an injured gum or
an open wound inthe oral cavity.
Caution:
Do not use an oral irrigator if it causes you pain,
discomfort, dizziness or vomiting.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

- 10 -
06/2025
2025, .
INTERRUPTION OF ORAL IRRIGATOR OPERATION
• To interrupt the operation of the oral irrigator, briefly press the
button.
Press the same button again to resume the operation of the oral
irrigator.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SWITCHING AN OPERATING MODE
• If you need to change the operating mode, repeatedly press the
switch.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SETUP MODE
• Inthe SETUP mode, you can set your own water pressure/speed.
• While the oral irrigator is turned off, press andhold the mode
switch for 3seconds. The display will automatically show the
water pressure from low to high level (atotal of 10gears) in the form
of acircle segment. The water pressure at each gear increases
fromlow to high.
• Briefly press the mode switch atthe desired pressure and speed.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CLEANING AND MAINTENANCE
Caution:
Toclean the oral irrigator, use water up to 50 °C
or neutral cleaning agent. Do not use wire cloths,
abrasive cleaners, thinners, etc. for cleaning to
prevent the cleaned surface from being damaged.
When cleaning, do not immerse the oral irrigator
in water.
Water tank
• For easy cleaning, the tank can be disconnected from the top of the
oral irrigator. Follow these steps:

- 11 -
06/2025
2025, .
1. Grasp the top of the oral irrigator with one hand andthe water tank
with the other.
2. Turn the tank counterclockwise to loosen the tank anddisconnect it
from the top of the oral irrigator – see FigureD.
• Reassemble the oral irrigator in reverse order.
• After each use, completely empty the water tank so that bacteria
cannot multiply init. Wash the tank with water, wipe it with aclean
dry cloth andallow it to drain anddry.
• If you have poured mouthwash or its solution into the tank when
using the oral irrigator, the tank must be rinsed properly. We
recommend filling the tank with clean water, starting the oral irrigator
and pumping all the contents of the tank into the sink. Then wash
the tank with water, wipe it with aclean dry cloth andallow it to
drain anddry.
Body of the oral irrigator
• Wipe the body of the oral irrigator using aclean dry cloth. Inthe
event of heavy soiling, you can use aslightly damp cloth. Clean the
surface then properly wipe dry.
Caution:
The upper part of the oral irrigator in which the
battery is stored is not intended for washing under
the tap. Do not spray the oral irrigator and the
charging cable with water or any other liquid or
submerge it in water or any another liquid.
Attachments
• Rinse the used attachments with water after each use to avoid the
formation of deposits. Then wash the surface of the attachment with
water andthen always wipe it dry with asoft cloth. Forhygiene
reasons, we recommend replacing the used attachments with new
ones every six months.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING CALCIUM DEPOSITS
• Dependingon the mineral content of theused water, hard water
deposits may accumulate in the tank, in the suction hose or
extension and in the nozzle. These can negatively affect the
operation of the oral irrigator andreduce its performance. It is
therefore important to remove deposits regularly.
• To remove mineral deposits, proceed as follows:
1. Empty the water tank andpour clean warm water into it (max.
temperature 85 °C).
2. Point the attachment with the nozzle into the sink andstart the oral
irrigator.
3. Let the contents of the tank be emptied completely.

- 12 -
06/2025
2025, .
4. Repeat the procedure if needed.
• Dependingon the degree of hardness of the water you use, repeat
the deposits removal process every 1–3months to maintain the
performance of your oral irrigator.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STORAGE
• After use, prepare the oral irrigator as instructed in the Cleaning
andMaintenance chapter. Store the oral irrigator in adry place
away from direct sunlight. If you want to put the oral irrigator away
for along time, we recommend removing the water tank from
thehandle.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING
Problem Possible cause Solution
Water escapes
from thespace
between the end of
the attachment and
the body of the oral
irrigator.
The sleeve gasket is
damaged or worn.
Have the gasket
replaced or replace
the nozzle.
The attachment is
not correctly fitted.
Remove the
attachment
andreattach it.
Water is leaking from
the tank.
The cover gasket is
damaged or the filling
hole is damaged.
Have the gasket
replaced or remove
any dirt from
thefilling funnel.
Water pressure is
too low.
The nozzle is
clogged with dirt.
Please clean or
replace the nozzle.
The nozzle is
deformed.
Change the nozzle.
The oral irrigator
is not sufficiently
charged.
Allow the oral
irrigator to charge.
The oral irrigator
does not work when
unpacked.
The oral irrigator
is not sufficiently
charged.
Allow the oral
irrigator to charge.
Water is not
splashing out of the
oral irrigator.
The water tank is
empty.
Please refill water.
The irrigator is too
tilted when used.
Keep the irrigator in
avertical position as
much as possible.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

- 13 -
06/2025
2025, .
TECHNICAL SPECIFICATIONS
Oral irrigator
Dimensions incl. attachment (h x d x w) ......................... 221 x 63 x 71.5 mm
Weight incl. attachment ..................................................................................233 g
Tank volume ....................................................................................................280 ml
Pump frequency ............................................................1200–1400 pulses/min
Water pressure.....................................................................................30–120 PSA
Charging time ............................................................................................ 2–3 hours
Operating time.........................................................................................40 minutes
Protection level against harmful water ingress...........................................IPX7
Built-in battery
Input ................................................................................................................5 V 1 A
Battery ................................................................................. Li-ion 3.7 V 1400 mAh
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BATTERY DISPOSAL
Before disposing of the product or returning it to adesignated collection
point, ensure that the battery is removed. The battery contains
environmentally harmful substances. Proper disposal shall be ensured
by the relevant collection point.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTRUCTIONS AND INFORMATION ON DISPOSAL
OF USED PACKAGING MATERIAL
Dispose used packaging material at the designated municipal waste
disposal site.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DISPOSAL OF USED ELECTRICAL AND
ELECTRONIC EQUIPMENT
Used electrical andelectronic products must not be disposed of in
ordinary municipal waste. To enable the proper disposal, renewal and
recycling of these products, deliver them to the designated collection
points. Alternatively, in some European Union states or other European
countries the products can be returned to the local retailer when buying
an equivalent new product. By properly disposing this product, you
help preserve valuable natural resources and help to prevent potential
damage to the environment and human health resulting from improper
waste disposal. For more details, contact your local authority or nearest
collection point. Fines may be imposed for the improper disposal of this
type of waste as per national regulations.

- 14 -
06/2025
2025, .
For business entities in European Union States
To dispose of electric or electronic equipment, request the necessary
information from your retailer or supplier.
Disposal in other countries outside the European Union
To dispose of this product elsewhere, request the necessary information
on the correct disposal method from local authorities or your retailer.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changes to text and technical parameters are reserved.
