Vosentech MicroFogger 4 Pro User manual

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MicroFogger 4 Pro Manual
Quick start guide
The following guide will show you how to setup your new MicroFogger 4 Pro for the first
time. Follow each step carefully - failure to do so can damage the product and cause
frustration!
Read the “safety” part of this manual to familiarize yourself with the safety
procedures before operating the MicroFogger.
1. Upon unboxing your parcel, locate the MicroFogger and the USB charging cable.
Turn the MicroFogger ON using the black toggle switch on the bottom and plug
it into a charger using the included cable. Only use a wall socket type USB charger
to prevent unintentional activation during charging. The MicroFogger can only be
charged while it is turned ON. We recommend that you allow the MicroFogger to
fully charge before beginning to use it. This will usually take 3 to 4 hours.
2. While the MicroFogger is charging, you can fill up the fog liquid tank. With the new
and improved top-fill design, simply lift up the rubber cover to open the fill port, as
shown in figures A and B. Do not pour any liquid onto the central opening.
3. Locate the bottle of fog liquid and unscrew the top cap. Using the pipette-style tip,
carefully pour fog liquid into the fill port. Take your time and don’t fill too quickly as
this can can make the process harder. We recommend getting the tip of the pipette
inside the fill port, and off to one side for easier filling as shown in figure C.
4. Once the fluid tank is nearly full, remove the fog liquid bottle and re-install the rubber
fill port cover. Wipe away any fog liquid drops which may have spilled
Figure A
Figure B
Figure C

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5. Let the MicroFogger rest in an upright position for a minimum of 15 minutes. This
ensures that the liquid has a chance to seep into the dry heating coil for the first
time. Failure to wait may result in damage to the heating coil.
6. Your MicroFogger is ready for use! Now, when you hold down the trigger button, the
MicroFogger will produce smoke. Remember that the MicroFogger is designed to be
used in bursts - using it continuously will make the heating coil wear out faster. It can
easily fog up a room but be patient and let it rest for 10 seconds between each
burst!
On-board user interface
By now, you’ve probably noticed that there are three buttons, a toggle switch and a
screen on the device.
Toggle switch
-Move to the I (ON) position to turn the device on either for operation or for charging.
-Move to the 0 (OFF) position to completely turn the device off when not in use. When
the switch is off, the MicroFogger cannot be charged
Main trigger button
-Hold down when the device is on to begin smoke production, let go to stop
-Press once to return to home screen from advanced settings menu
Mode button
-Press to change between fan speed and coil power adjustment
-Hold down for 4 seconds to enter the advanced settings menu
-In the advanced settings menu, press to cycle through settings
Select button
-Press to cycle through fan/coil power levels on the home screen
-Press to cycle through individual setting adjustments in the advanced settings menu
-Hold on certain settings to quickly cycle through number values
Screen user interface
The on-board screen interface will allow you to change the MicroFogger’s power levels
and adjust various advanced settings. The overall structure of the menu is as shown:
Home Screen and power
adjustment menu
Advanced settings menu
Press main button
Hold mode button

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Home and power adjustment menu
On the home screen, you’ll be able to adjust the density of the smoke produced (coil
power) by pressing the select button. Every time you press the select button, the power
level will increase by one bar until all 8 bars are filled at which point it will loop back to 1
bar. More bars equals to a higher power level. Once the desired density is achieved,
mode can be pressed again to begin adjusting the speed of the smoke (fan power level)
in the same way as detailed above. When you switch to adjusting the speed, you’ll
notice the highlighted rectangle move from the smoke power to the smoke speed level.
Throughout this process, you can hold the trigger button to see how changes to these
settings impact the smoke production in real-time.
Advanced settings menu
This interface can be entered by holding the mode button for 4 seconds while you are
on the home screen. Once entered, the mode button will cycle the setting that you are
adjusting and select will cycle through the different options the setting can be adjusted
to. Here is a visual representation of the menu:
Below is brief overview of each of the settings:
Continuous mode - selects a duration for which the MicroFogger will stay activated
after the trigger is pressed. When in this mode, the continuous operation can be
cancelled by pressing trigger again. Usually limited to 10s but with time limits off, this is
extended to 60s
Delay mode - Selects the duration for which the MicroFogger will wait until continuous
mode is activated. Requires continuous mode to be on in order to work. Limited to 15
minutes
Continuous
mode off
Press mode
Press select"
Delay "
mode off
Loop "
mode off
1 sec
2 sec
Hold select "
to fast cycle
Press mode
…
…
Note: Some setting such as loop mode
have dependencies so you’ll need to first
turn on continuous and delay mode in order
to turn on the loop mode.

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Loop Mode - Selects the number of operational loops that the MicroFogger will
perform. Requires continuous and delay mode to be turned on. Usually limited to 5 but
with time limits off, this is extended to infinite loops (indicated by the - - - symbol)
RC channel - Allows you to adjust the remote control channel configuration. By default,
all 4 remote control buttons are in use for various power levels but once a specific letter
is selected, the MicroFogger will only be triggered when that button is pressed on the
remote. This allows for up to 4 independently controlled MicroFoggers.
RC program - Allows you to bind the MicroFogger to any 433mhz frequency remote
control. Simply press select and follow the on-screen instructions. If your remote control
has less than 4 buttons, you can re-press the same buttons again to complete the
process.
Remote ON/OFF/TRG - Lets you turn off the MicroFogger’s remote control functionality
to avoid unintentional activation during important performances. When set to the TRG
(trigger) mode, the remote control will also let you activate loops and timers since by
default, in the ON setting, the remote control will act independently of timers.
Time limit ON/OFF - Toggles whether the time limit is on or off. When it is off, the
MicroFogger will not turn off after 10 seconds of continuous operation. It will also unlock
greater values in the continuous and loop mode menus. This is an advanced feature
and can be dangerous if used improperly. We recommend keeping it ON at all times.
Charge lock ON/OFF - Sets whether the MicroFogger can be activated while it is
charging. Keep this setting ON at all times unless you are both charging and triggering
the MicroFogger simultaneously. Turning it OFF may result in unintentional activation
while charging. Please note that with charge lock ON, you’ll need to restart the
MicroFogger to unlock it after charging.
Control cable ON/OFF - Toggles the ability to trigger the MicroFogger via its USB port.
By default, this is ON however if you are trying to run the MicroFogger while it is
charging and are having trouble with it incorrectly detecting your charger as an signal
input source, you can turn this setting OFF. Typical behavior to indicate that your
charger is being detected as a control cable is the MicroFogger activating the moment
you plug it in to charge.
Coil Priming - Allows you to pre-warm the heating coil in cold climates. We recommend
running this procedure prior to use outdoors, in cold climates.
Info - This screen will display the software version number. If the select button is
pressed on this menu item, the screen will rotate though either diagnostic information
such as total runtime and battery voltage.
Normal operation

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Holding down the trigger button while the MicroFogger is turned on will begin smoke
production. To maximize heating coil lifespan, we recommend a 10 second limit on
continuous use after which point, it is advisable to wait at least another 10 seconds
before the next burst to allow the fog fluid to be re-absorbed. Failure to do so will cause
excessive coil wear and may make the smoke smell burnt. If you observe this, follow the
instructions in the “storage and maintenance” section of this manual to replace the
heating coil. In extreme cases, if you keep running the MicroFogger even after the
heating coil has worn out, small burning fragments of the absorbent material may be
ejected out of the nozzle.
Although the MicroFogger can be used in any orientation provided that the tank is
mostly full, we still recommend that you keep it upright (with the nozzle pointing
vertically upwards) as much as possible. This position allows the coil to optimally absorb
the liquid, even if the tank is near-empty. If there isn’t much fog liquid remaining in the
tank, avoid using the MicroFogger in any orientation other than upwards as this would
have the same effect as running it without any liquid. If you are mounting the
MicroFogger in a static position and require smoke output in a downward direction, we
would recommend using our hose attachment accessory to route the smoke using a
hose.
After each use, we recommend ejecting any excess fog liquid that may have re-
condensed within the barrel of the MicroFogger. This can be done by simply holding and
“flicking” the MicroFogger to eject any excess liquid from the barrel. If indoors, make
sure to flick it into a sink to avoid getting drops on your floor. Alternatively, you can tap
the MicroFogger’s barrel on a surface while keeping it upside-down to encourage the
liquid to drip out. Failure to eject excess liquid after use may result in liquid damage in
the long term. This procedure is especially important if you are using the MicroFogger at
a low fan power level and a high coil power level as this increases condensation of the
fog inside the barrel, leading to more excess liquid.
Storage and maintenance
To store the MicroFogger, fully charge it and turn it off using the toggle switch. Place it in
a cool, dry place that is away from direct sunlight and any potentially flammable
materials. Unscrew the fluid tank and heating coil and give them a quick rinse to remove
any remaining fog liquid. Dry these components after washing and do not install them
back onto the MicroFogger for storage. Do not store the MicroFogger for extended
periods of time (more than a few days) with fog liquid still in the fluid tank as this
increases the probability of leaks.
If, during normal use, you notice that the smoke produced starts smelling burnt, it’s time
to replace your heating coil by following the steps below:

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1. Unscrew the black fluid tank cap and clear housing while keeping the nozzle pointed
down to prevent liquid from spilling back into the device as shown in figure D. Rinse
out any liquid residue.
2. Unscrew the heating coil by rotating it anti-clockwise as shown in figure E. You may
need to use a tool to get more torque if you are unable to loosen it using your
fingers. Sometimes, the heating coil may unscrew together with the fluid tank cap, in
which case you can skip this step.
3. If you notice any liquid in the airflow channel under the heating coil (figure F), try to
wipe away as much of it as possible using a paper towel.
4. Locate the spare heating coil which was included in your package
5. Screw the new heating coil into the slot. Make sure it is fairly tight - a loose heating
coil can cause the MicroFogger to leak or not produce smoke.
6. Repeat step 1 in reverse to re-assemble the fluid tank. As with the first-time setup
guide, please allow the liquid to absorb for at least 15 minutes before using the
MicroFogger.
If, during use, the MicroFogger isn’t producing any smoke and there is a bubbling
sound, immediately stop operation and eject any excess liquid as detailed in the “normal
operation” section.
Troubleshooting
Before attempting any troubleshooting steps, please reset the MicroFogger first by
holding the select and mode buttons at the same time for 10 seconds until “reset” is
displayed on the screen. This will fix many common software problems.
No smoke is emitted even though the fan spins when you press the trigger button -
Ensure the heating coil is fully tightened. If the problem persists, carefully insert a fine
screwdriver or other rod-like object into the barrel of the MicroFogger (the hole from
which smoke is emitted) while the unit is turned off. Briefly apply light pressure to the
screwdriver, this will ensure that proper electrical contact is restored. Remove the
screwdriver and try again. Should this error persist, please follow the procedure below:
Figure D
Figure E
Figure F

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-Take your heating coil out of the MicroFogger
-On the bottom part of the heating coil, you will notice a small metal “loop” shape
-Carefully pull out the loop shape by about 1 to 2mm from the heating coil
-Re-install the heating coil into the MicroFogger (making sure it is tight), re-install the
liquid tank (with sufficient liquid inside) and then try it again
Fluid tank leaking - Ensure that the tank and heating coil are fully screwed in. If the
leaks persists, ensure that all gaskets on the heating coil and tank are in place and
undamaged. There should be two black gaskets around the top and bottom of the fluid
tank enclosure as well as one smaller gasket around where fluid tank cap screws into
the heating coil.
MicroFogger won’t turn on - Plug it in to charge (while the toggle switch is in the ON
position) and wait 4 hours while the MicroFogger recharges.
MicroFogger won’t charge - If the MicroFogger is in a critically low battery state, the
screen may not come on for the first 30 minutes of charging. If the MicroFogger
proceeds to not display anything after this time, please try using another charger and
micro-USB cable to diagnose whether it is an issue with the MicroFogger or not. Please
remember that the toggle switch needs to be in the ON position in order for it to charge.
MicroFogger keeps charging forever - If the MicroFogger’s battery level doesn’t
increase at all even though you have charged it for many hours, make sure that the
bottom toggle switch is in the ON position.
MicroFogger turns on when the USB cable is plugged into it but the other end of the
cable is not in a charger - This can occur when charge lock is OFF. Some cables make
the MicroFogger recognize them as trigger inputs (a feature that allows you to trigger it
though a cable). To fix, turn charge lock back ON or turn the control cable setting to
OFF.
MicroFogger produces a burning smell even with a new heating coil - There may be a
very slight burning smell present in the first few second of operation with a new coil, this
is normal. If the smell does not disappear or gets more severe, stop using the
MicroFogger and allow it to rest for at least another 15 minutes before continuing.
Ensure that the fluid tank is fully filled. In cold environments, the fog liquid becomes
more viscous and will take longer to absorb into the heating coil. If this is the case, use
the priming setting prior to use to avoid this.
MicroFogger is leaking and fog liquid can be observed inside the case - This can
happen if the procedure for flicking/tapping out excess fog liquid is not respected. It is,
however, possible for the user to disassemble and clean the MicroFogger by following
the videos below:
-Opening the MicroFogger’s top cover
-Cleaning the MicroFogger

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Please note that these are advanced procedures and should only be attempted by
users with good technical knowledge.
Safety
The MicroFogger 4 Pro is powered by a high-performance Lithium-ion battery. This type
of battery presents a potential fire risk if handled improperly. The following safety
guidelines aim to prevent any issues from arising:
-Never leave the MicroFogger charging while unattended
-Never run the MicroFogger in automatic modes while unattended
-Never charge a MicroFogger using a computer or battery bank
-Always keep the MicroFogger away from any flammable materials
-Never expose the MicroFogger to temperatures over 40 degrees Celsius
-Never attempt to disassemble the MicroFogger unless instructed
-Never expose the MicroFogger to direct sunlight for extended periods of time
-Always ensure the MicroFogger’s heating coil compartment is clear of debris
-If the MicroFogger sustains a significant impact through a drop or other mistake that
punctures its battery, immediately cease operation (unplug it if it is charging) and place
it in a safe area outdoors to prevent any further damage to its surrounds should the
battery over-heat.
-If the lower half of the MicroFogger heats up to uncomfortable temperatures of over 40
degrees Celsius, immediately cease operation (unplug it if it is charging) and place it in
a safe area outdoors and wait for at least 10 minutes. If the MicroFogger has cooled
down to operational temperatures, you may proceed to use it.
-Never attempt to power the MicroFogger using a home-made charging cable. If you do
so, this will be at your own risk.
-Never attach, strap or secure the MicroFogger to a person or animal
-Always store the MicroFogger with the heating coil unscrewed and toggle switch in the
off position as this is the most stable and safe state that it could be in.
To produce smoke, the MicroFogger evaporates a mix of Propylene Glycol and
Vegetable Glycerin. Although these chemicals are both generally recognized as safe
and are commonly used in food additives and skin lotions, you must always follow the
following safety points:
-Do not consume the fog liquid
-Do not get any fog liquid into your eyes
-Never use the MicroFogger near children under the age of 4 or pregnant women
-Never use the MicroFogger near people with renal heath issues
-Never deliberately inhale the smoke produced
-Never operate the MicroFogger if the liquid tank is empty
-Never fog up a room to a visibility of less than 3m
-Never use any fog liquid other than the liquid which provided by us. If you decide to do
so, this would be at your own risk as we can only guarantee the safety and performance
of our own liquid.
If you feel nauseous, light-headed or exhibit any other adverse heath-related side-effect,
immediately cease operation and go to well-ventilated room with fresh air. Call a doctor

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if symptoms continue. Similarly, call a doctor is you are concerned about the impact of
these chemical on your health. Safety data sheets (MSDS) for the constituent chemicals
can be found on the fog liquid product page here.
During operation, the MicroFogger heats an internal metal coil in order to achieve the
afore-mentioned evaporation of chemicals. To prevent any heat-related issues please
follow these guidelines:
-Never touch the fluid tank during operation as it can burn you
-Always allow the fluid tank to cool down before changing coils or refilling liquid
-Never aim the MicroFogger at people or animals that are within 1m of range as
sometimes, small droplets of hot fog fluid can exit the nozzle
-Never look directly into the MicroFogger’s nozzle while it is running
-If the MicroFogger is used without liquid, the heated metal coil will start burning the
absorbent material surrounding it. This may cause a small flame to appear from the tip
of the MicroFogger. Ensure that you never run the MicroFogger without liquid as this
sort of incorrect operation can cause injury and damage.
Finally, there are a few more miscellaneous guidelines that must be respected:
-Never allow anyone under the age of 18 to use the MicroFogger
-If the smoke starts smelling burnt, immediately cease operation and replace the
heating coil with a new one.
-Never leave the MicroFogger in a car that is exposed to direct sunlight during hot
weather as this is likely to cause the plastic case to degrade and potentially soften. This
could result in gaps forming around the edges of the top cover.
Vosentech LLC will not accept any responsibility for property
damage or bodily harm caused by the improper use of the
MicroFogger. It is the user’s responsibility to use good
judgement and knowledge of the risks detailed above to correctly
and safely operate the device. If you are unwilling to accept the
risks associated with the use of this device, immediately return it
back to us for a refund.
Package contents
The following base items should be included in your order of the MicroFogger 4.
-MicroFogger 4 Pro
-Dropper bottle with 50ml of fog liquid
-Replacement heating coil
-Remote control
-Instruction manual download link
-USB charging cable

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Depending on your order, any of the following additional items may be included in the
box. The general layout of the parcel may be different should you purchase more than
one of these items.
-Set of 2 additional replacement coils
-Remote control and dongle (located under replacement coils/charging cable)
-Extra bottle of fog fluid
-Hose attachment
-Control cable
-Rake attachment
-Circular diffuser
-Liquid fog attachment
-Loc-Line adapter (located under the fog fluid bottles)
-Loc-Line tubing
-Replacement liquid tank (located under the fog fluid bottles)
-Nimbus tank upgrade kit
-Nimbus extended tank
-Nimbus heating coils
-Silicone tubing
Additional features
The MicroFogger 4 Pro supports several additional features that’ll make it easier for you
to incorporate it into your own custom projects should you decide to do so. Please note
that although these modifications are officially supported, you will void your
MicroFogger’s warranty should you decide to proceed since there is a potential to
damage the internal electronics if you are not careful. Whilst the following guides will
detail each step to make the process as easy as possible, we still advise that you only
attempt these modifications if you believe you have sufficient technical knowledge.
Proceed at your own risk
Wired manual control
The MicroFogger can be triggered via its USB port to allow for automated control or to
let you reliably activate it over long distances where the remote control may be
unsuitable. This can be done by simply connecting the two data pins (pins 3 and 4) of
the micro USB port together. To access these pins, you’ll need to get one of our control
cable break boards. Using the diagram on the back of the breakout board, connect your
switch or relay to the two pins on either side of the button symbol.
+
-
data
data
unused
MicroFogger 4 female micro USB type B port top view

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Incorrectly wiring or accidental contact between any wires other than the data ones can
lead to irreversible damage that is not covered by the warranty.
Wired digital control
Similarly, the MicroFogger can also be controlled using a common microcontroller such
as an Arduino. In order to do so, you’ll need to connect the black GND pin of the
breakout board to the ground pin of the microcontroller. You’ll then be able to send a
HIGH or LOW signal to the input pin in order to turn the MicroFogger on or off. The
signal voltage can range from 3V to 5V.
External Power
The MicroFogger 4 Pro can be configured to operate while charging so it is possible to
power it off of a USB battery bank or any other other 5V power supply. If using a battery
bank, you can connect it using the included micro USB cable. If a USB port is
inaccessible, our control cable breakout board can be used. Simply connect the positive
terminal of a 5V power supply to the charging pin on the breakout board and the black
wire to the ground pin. This will also allow you to use wired control while keeping the
MicroFogger on charge as long as you have turned off the charge lock setting in the
advanced menu.
Support and FAQs
Can the MicroFogger trigger smoke alarms?

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Yes, if enough smoke is produced then ionization and photoelectric smoke alarms will
be activated. Traditional heat-activated smoke alarms and sprinklers won’t be affected
Is it possible to change the smoke color?
Unfortunately not. The MicroFogger produces smoke through the evaporation of a fog
liquid so it can only be white, adding a dye to the liquid will not change this. The only
way to simulate colored smoke using the MicroFogger would be to light up the white
smoke using some external lights.
Can I breathe in the smoke?
During proper operation, the fog produced is considered to be non-toxic but we do not
recommend breathing it in anyway. The smoke can only become toxic if the safety
precautions regarding the replacement of worn-out heating coils are not followed.
What is the fog liquid made out of?
Our fog liquid consists of a high purity vegetable glycerin and propylene glycol mixture.
These chemicals are commonly-available and may be found in local vape shops as a
base liquids for electronic cigarettes. The MSDS documents for these chemicals can be
found on the fog liquid product page on our website, linked here.
Can I use liquids from other smoke machines?
Liquids from other fog machines are usually far less viscous than our composition so if
used in the MicroFogger, they are unlikely to produce any smoke. We can only
guarantee the safety and performance of the fog liquid that we sell so if you decide to
experiment with other compositions, this would at your own risk.
How long does the smoke linger in the air?
Depending on the atmospheric conditions, the smoke can remain in the air for up to an
hour after being released. The main factor affecting this is whether or not there is any air
movement, drafts or wind will greatly accelerate the smoke dispersion.
Do original MicroFogger/MicroFogger 2 heating coils work with the MicroFogger 4 Pro?
Due to the increased power and improved design of the new MicroFogger 4 Pro heating
coil, older MicroFogger heating coils are not compatible with it. Nimbus tank upgrade kit
coils are, however, compatible.
What obstacles can the remote control signal go through?
It really depends on the exact situation but in general, as a rough guideline, you will be
able to control the MicroFogger though several thin plaster walls. Similarly, if you decide
to put it into cardboard or fabric enclosure, you shouldn’t encounter any issues. On the
other hand, metal barrier such as car doors will usually block the signal although we
have even had luck with activating the MicroFogger while it was inside a car hood!
Can I control the MicroFogger 4 Pro via a wired remote?
Yes, the usb charging port also doubles as a signal input which allows you to trigger the

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MicroFogger using a switch, relay or microcontroller of your choice. You’ll need our
control cable accessory to access this functionality.
If you believe that your Microfogger is faulty, please check the troubleshooting section of
this manual. If your problem still persists, please consult the following page:
https://vosentech.com/index.php/repairs-and-replacements/
If, after reading the above page, you’d like to return the item, please see the instructions
below:
https://vosentech.com/index.php/returns-refunds/
If you’d like to contact us, feel free to use the email address or phone numbers below. If
it is a specific question about your order, please include your 4-digit order number which
can be found on your printed invoice.
[email protected] [phone]