How to Use Temtop S1-UP Setup, Placement and First PM2.5 Reading Malaysia

How to Use Temtop S1-UP  Setup, Placement and First PM2.5 Reading Malaysia


You have just received a Temtop S1-UP.


What should you do first?


Which operating mode should you select?


Where should you place the monitor?


How long should you wait before recording the PM2.5 reading?


Why does the number change after moving the instrument?


Can it connect to a mobile App?


The Temtop S1-UP is designed for simple monitoring of:


PM2.5


AQI


Temperature


Humidity


It is suitable for Malaysian homes, bedrooms, offices, classrooms, tuition centres and other occupied indoor spaces.


This guide explains how to begin using the S1-UP and avoid the most common setup mistakes.


Before Using the Temtop S1-UP


Begin by confirming the exact model.


The correct model name is:


Temtop S1-UP


Do not confuse it with:


Temtop S1+


The two models have similar names, but they are not identical.


The S1+ offers Bluetooth App connectivity.


The S1-UP is designed for standalone monitoring through its direct display.


What Does the S1-UP Measure?


The Temtop S1-UP monitors four parameters:


PM2.5 concentration


AQI


Temperature


Relative humidity


These measurements help users understand:


Fine-particle conditions.


Malaysian haze entering indoors.


Air purifier performance.


Room temperature.


Indoor humidity.


The S1-UP does not measure every possible indoor pollutant.


What Does the S1-UP Not Measure?


The S1-UP does not measure:


CO2


PM10


TVOC


Formaldehyde or HCHO


Carbon monoxide


Combustible gas


If any of these parameters are required, select another suitable monitor.


Do not use PM2.5 as a substitute for CO2, TVOC or formaldehyde.


Step 1: Inspect the Instrument


Before use, check that:


The instrument has no visible damage.


The display is intact.


The sensor areas are unobstructed.


The supplied accessories are present.


The model label shows the expected product.


The instrument has not been exposed to water or impact.


If damage is visible, document it before using the monitor.


Step 2: Prepare the Battery


Make sure the S1-UP has sufficient battery power before beginning a longer monitoring session.


Follow the manufacturer’s supplied instructions for charging and battery operation.


Do not use damaged charging accessories.


Do not charge the instrument in wet or excessively hot locations.


A low battery may interrupt the monitoring session and create an incomplete comparison.


Step 3: Switch On the S1-UP


Turn on the monitor according to the supplied operating instructions.


After startup, allow the instrument to begin responding to the surrounding air.


Do not immediately treat the first displayed number as the final room condition.


The reading may need time to respond, especially if the monitor has been moved from:


A box.


A vehicle.


An air-conditioned showroom.


An outdoor area.


Another room.


Step 4: Select ECO Mode or A Mode


The S1-UP provides two operating modes:


ECO Mode


A Mode


The correct mode depends on what you are doing.


When to Use ECO Mode


Use ECO Mode when you want:


Longer battery endurance.


General room monitoring.


Reduced charging frequency.


The monitor to remain in one position.


Broad observation over a longer period.


According to Temtop, standby duration may reach approximately 60 days, depending on use and battery condition.


When to Use A Mode


Use A Mode when you want:


More immediate monitoring.


To check an air purifier.


To compare windows open vs closed.


To move between several rooms.


To investigate a changing PM2.5 reading.


According to Temtop, standby duration may reach approximately 20 days, depending on use and battery condition.


The simplest rule is:


ECO Mode = longer monitoring


A Mode = active checking


Step 5: Choose the Room


Select the room according to your main concern.


Possible locations include:


Bedroom.


Living room.


Children’s room.


Home office.


Private office.


Meeting room.


Classroom.


Tuition centre.


Clinic waiting area.


Retail shop.


Start with the room where people spend the most time or where the air-quality concern is strongest.


Step 6: Choose a Representative Position


Place the S1-UP in the occupied part of the room.


The position should represent the air people generally experience.


Possible positions include:


A stable bedside table.


A desk.


A shelf.


A cabinet.


A secure office workstation.


A teacher’s table.


A reception counter.


The monitor should remain secure and unobstructed.


Where Should You Not Place the S1-UP?


Avoid placing it:


Directly beside an air purifier outlet.


Immediately under an air conditioner.


Beside an open window.


Next to an external door.


Above a cooking stove.


Near a humidifier.


Beside a bathroom entrance.


In direct sunlight.


Next to hot electronic equipment.


Inside a closed drawer or cabinet.


These positions may produce readings that do not represent the occupied room.


Why Not Place It Beside the Air Purifier?


The clean air leaving the purifier may have a lower particle concentration than the rest of the room.


A monitor placed directly at the outlet may show the purifier discharge instead of the general room condition.


For meaningful room monitoring:


Place the S1-UP away from direct purifier airflow.


Why Not Place It Under the Air Conditioner?


The air directly leaving the air conditioner may be colder and have different humidity from the rest of the room.


Strong airflow may also influence particle movement.


A reading taken under the outlet may not represent the occupied area.


Move the monitor away from direct airflow.


Step 7: Allow the Reading to Stabilise


After placing the S1-UP:


Keep it in one position.


Avoid unnecessary handling.


Keep room conditions recorded.


Observe how the reading changes.


Allow it to respond before recording the final value.


The required time may vary because the room condition itself may still be changing.


Step 8: Record the First Reading


For a useful first record, write down:


PM2.5


AQI


Temperature


Humidity


Time


Room


Monitor position


Window condition


Door condition


Air-conditioner status


Air-purifier status


Number of occupants


Relevant activity


A reading without context may be difficult to interpret later.


Example First Reading Record


Room: Main bedroom


Time: 8:00 PM


Operating mode: A Mode


PM2.5: Record displayed value


AQI: Record displayed indication


Temperature: Record displayed value


Humidity: Record displayed value


Window: Closed


Door: Open


Air conditioner: On


Air purifier: Off


Occupants: Two


This creates a baseline for future comparison.


Step 9: Observe the Trend


One reading tells you what is happening at one moment.


A trend helps answer:


Is PM2.5 increasing?


Is it decreasing?


Does it change after the purifier starts?


Does it increase when the door opens?


Does it change during cooking?


Does the room become warmer or more humid?


For many applications, the pattern is more useful than one isolated value.


Step 10: Change One Condition at a Time


If you want to understand what affects the reading, change only one major condition.


For example:


Switch on the air purifier.


Close the window.


Open the door.


Stop cooking.


Change the purifier speed.


Do not simultaneously:


Move the monitor.


Open the window.


Start the purifier.


Change rooms.


Switch operating modes.


If everything changes together, it becomes difficult to identify the cause.


How to Check an Air Purifier


Use the following procedure:


Record the initial PM2.5.


Keep the S1-UP in one position.


Switch to A Mode for active checking.


Record the purifier speed.


Switch on the purifier.


Keep the windows and doors consistent.


Observe the PM2.5 trend.


Do not position the monitor directly beside the purifier outlet.


How to Check the Effect of Closing Windows


Record:


PM2.5 with the window open.


The monitor position.


Air-purifier status.


Door condition.


Then:


Close the window.


Keep the S1-UP in the same place.


Keep other room conditions consistent.


Observe whether PM2.5 decreases.


Closing the window may reduce outdoor particle entry, but it does not instantly remove particles already inside.


How to Monitor a Bedroom


Place the S1-UP:


Inside the occupied area.


Away from direct air-conditioning airflow.


Away from the purifier outlet.


Away from the window.


Record the readings before sleeping and after waking if required.


However:


The S1-UP does not measure bedroom CO2.


Use a CO2-capable monitor when overnight ventilation awareness is required.


How to Monitor a Living Room


A living room may be affected by:


The main entrance.


Balcony doors.


Kitchen smoke.


Visitors.


Cleaning.


Incense.


Smoking.


Keep notes about these activities.


An increase in PM2.5 may be caused by an indoor source rather than outdoor haze.


How to Monitor an Office


For office monitoring:


Choose a representative workstation or room position.


Avoid air-conditioning outlets.


Avoid printers and hot equipment.


Record occupancy.


Record door movement.


Record purifier operation.


If the main concern is a stuffy meeting room, additional CO2 monitoring may be required.


How to Monitor a Classroom


Place the S1-UP securely where students cannot knock it down.


Keep it away from:


Open windows.


Classroom doors.


Air-conditioner outlets.


Fans.


Air purifier outlets.


The S1-UP can show PM2.5, temperature and humidity.


It cannot show classroom CO2.


Understanding PM2.5


PM2.5 refers to fine airborne particles.


Possible sources include:


Haze.


Traffic.


Open burning.


Cooking smoke.


Smoking.


Incense.


Construction.


Cleaning.


The S1-UP displays particle concentration at its position.


It does not identify the exact source.


Understanding AQI


AQI is an index used to communicate the air-quality condition.


PM2.5 and AQI are related but are not the same type of value.


PM2.5 = measured particle concentration


AQI = interpreted air-quality index


Do not assume that the same numerical value means the same thing.


Understanding Temperature


The temperature reading describes the condition around the monitor.


It may be affected by:


Air-conditioner outlets.


Sunlight.


Hot equipment.


Windows.


Monitor placement.


Keep the S1-UP in a representative position when comparing temperature.


Understanding Humidity


Relative humidity may be affected by:


Weather.


Air conditioning.


Bathrooms.


Humidifiers.


Wet cleaning.


Room ventilation.


One humidity reading does not diagnose building moisture, condensation or mould.


Further inspection may be required for persistent moisture problems.


Why Does the PM2.5 Reading Keep Changing?


PM2.5 may change because:


The door opens.


The window opens.


The purifier operates.


Cooking begins.


Cleaning disturbs dust.


Outdoor haze changes.


People move through the room.


Airflow changes.


A changing reading does not automatically mean the monitor is faulty.


Look at the overall trend and room conditions.


Why Does the Reading Change After Moving the Monitor?


The new location may have different:


PM2.5.


Temperature.


Humidity.


Airflow.


Distance from windows.


Distance from the purifier.


Allow the S1-UP time to respond after moving it.


Do not compare the first number in the new room with a stable reading from the previous location.


Why Does S1-UP Differ from the Air Purifier Display?


The instruments may have:


Different sensors.


Different positions.


Different algorithms.


Different update behaviour.


The purifier sensor may be near its intake.


The S1-UP may be elsewhere in the room.


A numerical difference does not automatically mean either unit is faulty.


Observe whether both readings generally increase or decrease together.


Why Does S1-UP Differ from an Outdoor AQI App?


The App may use information from a distant outdoor monitoring station.


The S1-UP measures the local indoor air around the instrument.


Differences may be caused by:


Distance.


Building filtration.


Closed windows.


Indoor particle sources.


Different averaging periods.


Different AQI calculations.


Do not expect both readings to match exactly.


Can S1-UP Connect to a Mobile App?


No.


The Temtop S1-UP is a standalone model.


The Temtop S1+ provides Bluetooth App connectivity.


Choose S1-UP when you want direct on-screen monitoring.


Choose S1+ when App connectivity is required.


Can S1-UP Measure CO2?


No.


Choose a CO2-capable monitor when you need:


Bedroom CO2.


Meeting-room monitoring.


Classroom ventilation awareness.


Occupancy-related trends.


The S1-UP only displays PM2.5, AQI, temperature and humidity.


Can S1-UP Measure PM10?


No.


The S1-UP focuses on PM2.5.


Consider a PM10-capable model such as the Temtop P600 when both PM2.5 and PM10 are required.


Can S1-UP Measure Formaldehyde or TVOC?


No.


For:


New furniture.


Paint.


Cabinets.


Flooring.


Adhesives.


Renovation emissions.


choose an instrument with the appropriate HCHO or TVOC measurement capability.


A low PM2.5 reading does not prove that chemical pollutants are absent.


Daily Monitoring Routine


A simple daily routine may include:


Check the battery.


Confirm the operating mode.


Keep the monitor in the same position.


Record PM2.5.


Record temperature and humidity.


Note windows and doors.


Note purifier operation.


Note unusual activities.


Compare with previous readings.


This makes the information more useful over time.


Weekly Room Comparison


One S1-UP may be moved between several rooms.


For example:


Monday — Bedroom.


Tuesday — Living room.


Wednesday — Home office.


Thursday — Children’s room.


Friday — Meeting room.


Use the same mode and a similar placement method.


Allow the reading to stabilise in each room.


Care and Handling


Protect the S1-UP from:


Water.


Rain.


Heavy steam.


Direct sunlight.


Strong impact.


Falls.


Excessive heat.


Excessive dust.


Do not block the sensor area.


Do not open or modify the instrument unless authorised.


Store and use it according to the manufacturer’s instructions.


Common First-Time User Mistakes


Mistake 1: Confusing S1-UP with S1+


The S1-UP does not provide App connectivity.


Mistake 2: Recording the First Number Immediately


Allow the monitor to respond to the room.


Mistake 3: Placing It Beside the Purifier Outlet


This may not represent the overall room.


Mistake 4: Placing It Under the Air Conditioner


This may influence temperature, humidity and particle movement.


Mistake 5: Moving It During a Comparison


Keep the position consistent.


Mistake 6: Expecting CO2 Measurement


The S1-UP does not measure CO2.


Mistake 7: Treating PM2.5 as Formaldehyde


Different pollutants require different sensors.


Mistake 8: Judging the Room from One Reading


Observe trends and record room conditions.


When Should You Request Help?


Request further assessment when:


The display does not operate normally.


The instrument does not respond after basic checks.


The battery or charging behaviour appears abnormal.


The unit has been exposed to water.


Physical damage is visible.


The reading remains clearly abnormal under controlled conditions.


Before contacting MTM Precision, prepare:


A clear instrument photo.


A photo of the model label.


The displayed reading.


The selected operating mode.


A photo showing the monitor position.


A description of the room conditions.


A short video if the symptom changes or the display appears frozen.


Temtop S1-UP First-Use Checklist


Before monitoring:


Confirm the S1-UP model.


Check the battery.


Select ECO Mode or A Mode.


Choose one room.


Use a representative position.


Keep away from direct airflow.


During monitoring:


Allow the reading to respond.


Record PM2.5 and AQI.


Record temperature and humidity.


Record doors, windows and purifier status.


When comparing:


Change one condition at a time.


Keep the monitor in one position.


Use the same operating mode.


Observe the trend.


How to Use Temtop S1-UP – Final Summary


The Temtop S1-UP is designed for straightforward monitoring of:


PM2.5


AQI


Temperature


Humidity


Use ECO Mode when longer battery endurance is important.


Use A Mode when you want more immediate monitoring.


Place the monitor in a representative occupied area.


Keep it away from:


Air purifier outlets.


Air-conditioner outlets.


Open windows.


External doors.


Sunlight.


Steam.


Hot equipment.


Most importantly:


Use the S1-UP for PM2.5 and basic room-condition monitoring.


Choose another instrument when you require CO2, PM10, TVOC, formaldehyde or specialised professional testing.


Contact MTM Precision


Contact MTM Precision for Temtop S1-UP Malaysia price and quotation, or for assistance with product selection, setup, placement and PM2.5 monitoring.


For initial troubleshooting, WhatsApp a clear instrument photo, model label, operating mode and visible symptom.


MTM Precision Sdn Bhd


Showroom & Service Centre:

No. 29-1 & 29-2, Jalan Bandar 18,

Pusat Bandar Puchong,

47160 Puchong, Selangor, Malaysia


Tel: 03-8080 7172

WhatsApp: +6016-660 7346

Email: mtmpre@yahoo.com

Website: www.mtmpre.com.my

03 Oct 2026