WSNUEEE

On this page

Plug-in · Bluetooth · Waterless

A323

Q: Do I add water?

No. The A323 atomizes pure oil. Adding water, or using a water-based, diluted or thickened fragrance, clogs the atomizing core and voids the part warranty.

Q: What is the default app password?

The factory password is 8888. You can change it in Device control, Change password. If you forget the new one, the reset button on the unit restores 8888 with a short press.

Q: How long does a 60 mL bottle last?

At G1 the diffuser draws about 0.18 g per hour of run time, so roughly 330 hours, or about two weeks of eight-hour days. At G3 (0.30 g/h) it is closer to 200 hours. The 3H and 6H timers cut that further because the unit stands by between runs.

Q: Can I use it in a horizontal outlet?

Yes. The plug prongs rotate 90 degrees so the body can stay upright in a sideways outlet. Turn the plug, never the machine; the A323 must stay vertical or oil reaches the seam.

A compact waterless diffuser that plugs straight into the wall. No water, no cord, no warm-up — just a 60 mL oil bottle and four ways to run it, from a three-hour burst to a full daily schedule set in the app.

1.5 W · AC 100–240 V 60 mL bottle Covers 30 m² Rotatable plug 3 grades + custom Bluetooth app control

Model A323 · Bluetooth Aroma Diffuser · Product Manual

Home › Guides › A323 Setup Guide

Updated Oct 19, 2026·10 min read·Reviewed by WSNUEEE Product Support·Model A323

Product Overview

Know Your A323

A plug-in waterless diffuser for rooms up to 30 m². It draws 1.5 W, holds a 60 mL oil bottle, and runs on three preset concentration grades or a schedule you set yourself.

MODEL	A323
SIZE	4.3 × 4.0 × 2.4 in110 × 101 × 60 mm
BOTTLE	60 mLApprox. 2.0 fl oz · refillable
POWER	1.5 W
INPUT	AC 100–240 V · 50/60 Hz
COVERAGE	30 m² / 90 m³About 320 sq ft · 3,100 ft³
NET WEIGHT	0.28 kgAbout 9.9 oz

What’s in the Box

A323 diffuser body with the atomizer cap fitted

Diffuser bodyAtomizer cap pre-fitted, plug on the rear

60 mL oil bottleRefillable, screws into the base

Quick start guideThis manual in print

Where It Works Best

Bedroom

Bathroom

Entryway

Small office

Hotel room

One thing before you start

The A323 diffuses pure oil only. Never add water, and never use a water-based or diluted fragrance — both will clog the atomizing core.

Getting Started

Set It Up in Four Moves

Unbox to first scent in about a minute. The bottle screws into the base; the head lifts off for refills.

Four-step installation: lift the head and bottle out, twist the head off the bottle, refill and tighten, then align and press back into the machine

Lift out

Lift the diffuser head and the bottle out of the machine together.

Twist apart

Twist the head off the bottle. Set the head down upright so no oil runs out.

Fill and tighten

Add oil to the bottle, then tighten the bottle and the head back together.

Press back in

Align the assembly with the machine and press down until it seats.

Rotatable plug

The plug prongs turn, so the body can sit upright in a horizontal outlet. Twist the plug, not the machine — the unit must stay vertical once it is plugged in.

Keep the bottle upright

Fill the bottle over a cloth and tighten it before you turn it over. Oil that reaches the head’s seam will seep into the housing.

Parts

The Five Parts That Matter

Two buttons on top, one atomizing disc in the middle, and a plug on the back. Tap a number to see what it does.

Front

Top

A323 top view showing the rotating plug, atomizing disc, mode button and grade button

1
Atomizer nozzleThe fine mesh disc at the centre of the head. Pure oil only — it clogs on water or thickened oil.
2
Rotatable plugFolds out on the back and turns 90° for horizontal outlets. Keeps the body upright.
3
Mode buttonShort press cycles 3H → 6H → Smart → Off. Hold 3 seconds to restore factory settings.
4
Grade buttonShort press steps through grades 1 → 2 → 3 → 1. Hold 3 seconds to reset.
5
Oil bottle60 mL refillable amber bottle. Screws into the base; twist the head off to refill.

Tap a number on either diagram — or any item in the list — to see what that part does.

The Two Small Parts

Bottle60 mL · screws into the base

Atomizer headHolds the mesh disc and the oil seal

ManualPrint version of this guide

Functional Analysis

Buttons, Modes and the Buzzer

Everything works from two buttons on the top panel. The app can override both, and the lights tell you which mode is running.

The Four Modes

3H3-Hour run

Runs for 3 hours, then stands by for 3 hours with a yellow light.

6H6-Hour run

Runs for 6 hours, then stands by for 6 hours with a yellow light.

SMSmart

Follows the working periods you set in the app over Bluetooth.

OFFOff

Stops diffusing. The unit stays powered but silent.

A323 diffuser with the top control panel visible: status lights, grade and mode buttons

Grade Button

Short press cycles the scent intensity 1 → 2 → 3 → 1.
Long press 3 seconds restores factory settings.
In Bluetooth mode, all mode lights are off.

Buzzer

Power on — one beep.
Grade or mode button short press — one beep.
Grade button held 3 seconds — one beep, factory reset.
Bluetooth connected — multiple beeps.
Bluetooth operation successful — one beep.

What the Lights Mean

3H timer — on while the 3-hour run is active

6H timer — on while the 6-hour run is active

Blue — machine is running and diffusing

Yellow — standby between runs

Smart — Bluetooth is connected and working

Red — off-mode light; all others dark

Bluetooth mode

In Bluetooth mode every mode light is off. When Bluetooth connects, the unit beeps and the Bluetooth indicator stays on.

Timer cycles

Both timers run on a 24-hour cycle. In 3H mode the unit runs 3 hours on blue, then stands by 21 hours on yellow. In 6H mode it runs 6 hours on blue, then stands by 18 hours on yellow.

Bluetooth

Pair It With the App

The Scent Marketing app is where schedules, custom grades and the device password live. Pair once; after that the app reconnects on its own.

Scent MarketingFree · Android and iOS

Search for “Scent Marketing” in Google Play or the App Store, or scan the code for your phone. If the code will not scan, search the store by name.

Turn on Bluetooth and location services before you open the app. Without location permission the phone cannot list nearby devices.

QR code to download the Scent Marketing app for Android

AndroidGoogle Play

QR code to download the Scent Marketing app for iOS

iOSApp Store

Six Screens, Start to Finish

9:41BT · ●●●

‹ Select version

Bluetooth version

WIFI version5.1.3 · 2024-06-07

‹ Device ↻

Nearby

A323-3C2S/DD1AB

A1-0X06D8A

A315-B805E

‹ A323

Password

●●●●

👁

Remember password

Factory default8888

‹ Device control Save

Name

Lobby

Label

Reception

Intensity

123

Schedule

Working period

Grade2

‹ Working period Save

Start working time

08:00

Stop working time

18:00

Days

MTWTFSS

Grade

123

Custom

Work 15 s

Stop 90 s

‹ Password Change

The new password

●●●●

Confirm password

●●●●

Confirm

PCB versionV2.10

APP versionV4.2.9

Step 1 — Open Scent Marketing and choose Bluetooth version. Wi-Fi is for a different model.

Forgot the password?

Press the reset button on the unit. A short press restores 8888. A long press restores the whole diffuser to factory settings and clears your saved schedules.

Schedule does nothing?

A working period only runs inside the times you set. If the current time falls outside them, the A323 stays silent by design — that is not a fault.

Concentration

Grades and Oil Consumption

Every grade sprays for 15 seconds. The grade changes how long the unit pauses between sprays, which is what actually sets the strength — and how fast the bottle empties.

Work time15 s

Stop time120 s

Consumption0.18 g/h

Duty cycle 11%Grade 1 · gentle

G1 is the quietest setting. It sprays for 15 seconds every two minutes, so a 60 mL bottle lasts about two weeks of eight-hour days. Best for a bedroom or a small office where you want the scent to sit in the background.

All Grades at a Glance

Grade	Work time	Stop time	Consumption	Feel
G1	15 s	120 s	0.18 g/h	Gentle — background scent
G2	15 s	90 s	0.24 g/h	Balanced — everyday default
G3	15 s	60 s	0.30 g/h	Strong — larger or busier rooms
Custom	5–15 s	60–300 s	—	Your own duty cycle

Reading the numbers

Work time is fixed at 15 seconds in every preset, so the stop time is the only variable: 120 → 90 → 60 seconds. Shorter pauses mean a denser scent and a faster draw on the oil — G3 uses about 67% more oil per hour than G1.

Custom stall

In the app, tick Custom to set work time between 5 and 15 seconds and stop time between 60 and 300 seconds. Anything slower than G1 with a very short spray is the way to scent a room for a whole week on one fill.

Notes From the Manual

The consumption table is for reference only. Oils with different viscosities will be consumed at different rates.
For the best atomization, use essential oils with a viscosity below 30 mPa·s and an ambient temperature around 25 °C (77 °F).
Cold rooms and thick oils both reduce output — warm the bottle in your hands for a minute before refilling in winter.

Maintenance

Cleaning

Two triggers: you are switching oils, or the mist has gone weak. Either one means the atomizing head needs alcohol and air.

Clean When

You are about to change to another kind of essential oil.
The atomization volume becomes weak.
You have not used the unit for more than a month.

Never wash the body

Only the head and the bottle get alcohol. The machine body, the plug and the control panel must stay dry — wipe them with a dry cloth only.

Cleaning Steps

Pull out the atomized head.

Fill a larger container with industrial alcohol, then soak the atomized head and the bottle for 5–10 minutes.

Let the atomizer head and the bottle dry completely before you put them back.

Warning

Safety

Six rules from the printed manual. The first two prevent most of the failures we see.

01Read before use

Please read the user manual before operation and maintenance.

02Keep it vertical

Keep the machine vertical. Laying it flat may cause oil overflow into the housing.

03Empty before moving

Make sure the machine has no essential oil inside the bottle before transportation.

04Tighten the bottle

Tighten the oil bottle before use. A loose bottle lets air in and oil seep out.

05Clean regularly

Clean the machine with alcohol every 1–2 months.

06Do not modify

Do not modify, disassemble or repair the machine. If any failure occurs, please contact our technical personnel.

Three icons: an upright diffuser marked correct, a tilted diffuser marked incorrect, and a flat diffuser marked incorrect

Upright is the only safe position

The A323 atomizes oil upward and relies on gravity to keep the oil in the bottle. Tilted or laid flat, oil reaches the seam and the air path — the result is a spill, a weak mist, or a blocked head.

If your outlet is horizontal, rotate the plug prongs instead of turning the body.

Before You Return It

Troubleshooting

Work through these five symptoms first. Four of them are settings or a loose seal, not a broken machine.

Symptom	What to check
Does not diffuse	Check whether you chose the correct mode. Check whether the machine sits in a “non-working period”. The air pump may be damaged — replace it with a new one. Check whether the tube is loose or not connected.
Low diffuse	The atomizing core is blocked — clean it with alcohol or change to a new atomizer head. Check whether the gasket is damaged, loose or missing. Check whether the tube is loose or not connected.
Oil spill	Check whether the bottle is loose. Check if the gasket in the atomized head is damaged, loose or missing.
Oil sprinkle	The atomized head is damaged — change to a new one. The machine is tilted or laying flat — keep the machine vertical.
Abnormal noise	The air pump is loose — retighten the pump. The air pump is damaged — replace it.

Still stuck?

Email wsnueee@outlook.com with your order number, the model A323, and a short video of the unit running. We reply within 24 hours and will tell you whether it is a part you can swap yourself.

Regulatory

FCC & ISED Statements

North American compliance notices, reproduced from the printed manual.

FCC Statement (United States)

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.

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.

FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

RF Exposure: This device complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20 cm between the radiator & your body.

ISED Statement (Canada) — English and French

English: This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions:

This device may not cause interference.
This device must accept any interference, including interference that may cause undesired operation of the device.

The digital apparatus complies with Canadian CAN ICES - 3 (B)/NMB - 3(B).

Français : Cet appareil contient des émetteurs/récepteurs exemptés de licence qui sont conformes aux RSS exemptés de licence d’Innovation, Sciences et Développement économique Canada. L’exploitation est soumise aux deux conditions suivantes :

1) Cet appareil ne doit pas provoquer d’interférences.
2) Cet appareil doit accepter toute interférence, y compris les interférences susceptibles de provoquer un fonctionnement indésirable de l’appareil.

l’appareil numérique du ciém conforme canadien peut - 3 (b)/nmb - 3(b).

This device meets the exemption from the routine evaluation limits in section 2.5 of RSS 102 and compliance with RSS 102 RF exposure, users can obtain Canadian information on RF exposure and compliance.

Cet appareil est conforme à l’exemption des limites d’évaluation courante dans la section 2.5 du cnr - 102 et conformité avec rss 102 de l’exposition aux rf, les utilisateurs peuvent obtenir des données canadiennes sur l’exposition aux champs rf et la conformité.

This equipment complies with Canada radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20 cm between the radiator & your body.

Cet équipement est conforme aux limites d’exposition aux rayonnements du Canada établies pour un environnement non contrôlé. Cet équipement doit être installé et utilisé à une distance minimale de 20 cm entre le radiateur et votre corps.

After the Sale

Warranty & Support

Every A323 is covered for a year against manufacturing faults. Consumables and accidental damage are handled separately.

12 MONTHS WARRANTY

Twelve months from delivery on the diffuser body, the pump and the plug. The atomizer head and bottle are covered for 3 months, because both are wear parts that alcohol cleaning slowly degrades.

Replace a partAtomizer head, gasket and pump are all user-replaceable. Ask us and we ship the part.

Not coveredWater or water-based oil damage, drops, and a unit run laid flat or with a missing gasket.

Response timeEmail answered within 24 hours, Monday to Saturday, Hong Kong time.

Before you return it

Send a short video of the unit with the bottle filled. Nine out of ten “dead” units are inside a non-working period or have a loose tube — both fixable in a minute.

Bought on Amazon?

Message us through your Amazon order rather than emailing, so the order number and the replacement stay on the same record.

Questions

Frequently Asked

The things people ask before and just after their first fill.

What is the WSNUEEE A323?

A plug-in waterless aroma diffuser for rooms up to 30 m². It runs on 1.5 W, holds a 60 mL refillable oil bottle, and diffuses pure oil through a fine mesh atomizer. You control it from two buttons on top or over Bluetooth from the Scent Marketing app.

Do I add water?

No. The A323 atomizes pure oil. Adding water — or using a water-based, diluted or thickened fragrance — clogs the atomizing core and voids the part warranty.

What is the default app password?

The factory password is 8888. You can change it in Device control → Change password. If you forget the new one, the reset button on the unit restores 8888 with a short press.

What do grades 1, 2 and 3 change?

Only the pause between sprays. Work time stays at 15 seconds; the stop time is 120, 90 and 60 seconds for G1, G2 and G3. Shorter pauses mean a denser scent and faster oil use — 0.18, 0.24 and 0.30 g per hour.

How long does a 60 mL bottle last?

At G1, about 0.18 g per hour of run time, so roughly 330 hours — around two weeks of eight-hour days. At G3 (0.30 g/h) it is closer to 200 hours. The 3H and 6H timers cut that further because the unit stands by between runs.

What is the difference between 3H, 6H and Smart?

3H runs for three hours then stands by for three, on a 24-hour cycle. 6H runs six and stands by six. Smart ignores the buttons and follows the working periods you set in the app — the mode you want if you are scheduling an office.

Can I use it in a horizontal outlet?

Yes. The plug prongs rotate 90 degrees, so the body can stay upright in a sideways outlet. Turn the plug, never the machine — the A323 must stay vertical or oil reaches the seam.

Why does the unit not spray even though it is on?

Most likely the current time is outside every working period you have set, so the unit is in a non-working period by design. Otherwise check the mode, then the tube and the pump. The troubleshooting table covers all five causes.

How often should I clean it?

Every one to two months, whenever you switch oils, and any time the mist gets weak. Soak the atomizer head and bottle in industrial alcohol for 5–10 minutes, then let both dry completely. Never put the body or plug in liquid.

Which oils work best?

Pure essential oils or pure fragrance oils with a viscosity below 30 mPa·s, at around 25 °C. Avoid perfumes with high alcohol content, oils with carrier liquids added, and anything thick enough to coat the mesh.

About WSNUEEE

Scent as a part of the room, not an event in it.

WSNUEEE builds waterless diffusers for people who want a scent to sit quietly in a space rather than announce itself. The A323 is the compact end of that range: a plug, a bottle, and a schedule that runs itself.

Every guide is written from the printed manual, checked against the machine, and kept current. If something here does not match what you see, tell us and we will fix the page.

WOSUO INTERNATIONAL LIMITED

Unit 11, 9/F, The Cloud, No. 111 Tung Chau Street,
Tai Kok Tsui, Kowloon, Hong Kong

Emailwsnueee@outlook.com

WhatsApp+852 64867199

Supportwsnueee.com/support

Instagram@wsnueee

ResponseWithin 24 hours