Factory Warehouse Temperature Humidity and Air Quality Monitoring Malaysia
Meta Description: Monitor temperature, humidity, dust, CO2 and VOC conditions in Malaysian factory warehouses using portable meters, data loggers and fixed monitoring systems.
Factory Warehouse Temperature Humidity and Air Quality Monitoring Malaysia
Factory warehouses store raw materials, components, finished products, packaging and maintenance supplies. Environmental conditions inside the warehouse can affect product quality, packaging, corrosion, employee comfort and storage life.
A warehouse may appear acceptable during a daytime inspection while experiencing excessive heat, humidity or poor ventilation overnight and during weekends.
A suitable warehouse environmental monitoring system records how conditions change over time and helps the factory identify problem zones.
What Should Be Monitored in a Factory Warehouse?
Depending on the products stored, useful parameters may include:
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Temperature
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Relative humidity
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PM2.5 and PM10
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CO₂
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TVOC
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Formaldehyde
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Airflow
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Light level
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Specific gases
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Water leakage
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Door-opening events
Not every warehouse requires every parameter. The monitoring plan should match the stored materials and possible hazards.
Why Temperature Monitoring Is Important
High or unstable temperature may affect:
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Adhesives
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Coatings
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Chemicals
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Plastics
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Rubber components
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Electronic products
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Batteries
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Food ingredients
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Packaging
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Measuring instruments
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Product shelf life
Temperature may rise because of:
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Roof heat
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Direct sunlight
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Inadequate ventilation
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Air-conditioning failure
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High stock density
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Machinery operating nearby
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Closed loading doors
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Poor air circulation
A data logger can reveal the hottest time of day and whether conditions remain elevated after working hours.
Why Humidity Monitoring Is Important
High relative humidity may contribute to:
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Metal corrosion
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Mould growth
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Damaged cartons
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Wet labels
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Powder clumping
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Condensation
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Packaging deterioration
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Electronic-component damage
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Product-quality changes
Very low humidity may also affect certain materials and increase static-related concerns.
The appropriate range depends on the stored product, packaging and manufacturer requirements.
Temperature and Humidity Data Loggers
A data logger records conditions automatically at a selected interval.
Models such as the Elitech RC-5 series can support warehouse temperature monitoring, while suitable Elitech temperature-and-humidity models can record both parameters.
Data loggers are useful for:
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Overnight monitoring
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Weekend records
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Comparing warehouse zones
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Checking air-conditioning performance
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Identifying daily temperature peaks
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Investigating product complaints
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Verifying storage improvements
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Recording conditions during transport
A spot meter shows the condition now. A data logger shows what happened over time.
Where Should Data Loggers Be Positioned?
Possible monitoring points include:
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Near the centre of the warehouse
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At upper storage levels
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Near external walls
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Under the roof
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Near loading doors
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Close to air-conditioning outlets
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In known warm or humid zones
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Near sensitive products
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Away from direct sunlight
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At lower storage levels
Avoid placing the only logger directly beside an air-conditioning outlet because it may not represent the stored products.
Why One Logger May Not Be Enough
Environmental conditions may vary across a large warehouse because of:
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Roof height
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Sun-facing walls
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Storage racks
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Loading doors
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Air-conditioning layout
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Ventilation fans
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Product density
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Floor level
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Mezzanine areas
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External weather
Several loggers can be used temporarily to map the warehouse before deciding on permanent monitoring locations.
Monitoring PM2.5 and PM10
Warehouse dust may come from:
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Outdoor haze
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Loading and unloading
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Vehicle movement
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Damaged packaging
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Powder products
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Wooden pallets
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Construction
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Open doors
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Adjacent production processes
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Poor housekeeping
A portable Temtop particulate monitor can compare:
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Indoor and outdoor readings
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Warehouse and production areas
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Door open and closed conditions
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Before and during loading
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Different storage zones
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Conditions before and after cleaning
PM monitoring shows particulate trends but does not identify the chemical composition of the dust.
Monitoring CO₂
CO₂ may increase in occupied enclosed warehouse areas when:
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Ventilation is insufficient
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Many workers are present
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Doors remain closed
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Air-conditioning recirculates air
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Office or packing rooms are crowded
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Outdoor-air supply is limited
CO₂ is mainly useful as a ventilation indicator in normally occupied indoor spaces.
It should not be confused with carbon monoxide or used as proof that every pollutant is at a safe level.
Monitoring TVOC and Formaldehyde
TVOC or formaldehyde monitoring may be useful in warehouses storing:
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Paints
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Solvents
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Adhesives
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Engineered wood
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Furniture
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Rubber products
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Plastics
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Cleaning chemicals
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Newly manufactured goods
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Renovation materials
A portable monitor such as the Temtop LKC-1000S+ can provide TVOC, HCHO, PM2.5 and PM10 readings for general warehouse air-quality screening.
Chemical-storage rooms may require dedicated gas detectors rather than only a general TVOC monitor.
Portable vs Data-Logging vs Fixed Monitoring
Portable Meter
Suitable for:
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Spot checks
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Comparing warehouse zones
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Troubleshooting
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Locating hot, humid or dusty areas
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Investigating complaints
Data Logger
Suitable for:
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Continuous records over days or weeks
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Temperature and humidity trends
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Product-storage documentation
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Identifying overnight changes
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Comparing several locations
Fixed Monitoring System
Suitable for:
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Permanent critical locations
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Real-time display
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Remote data
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Continuous alarms
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Multiple connected sensors
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Ventilation or building-system integration
Factories may begin with portable mapping and temporary data loggers before installing a fixed system.
Using Fixed Air Quality Monitoring
A suitable Fosensor FS11301 configuration may be used where continuous monitoring of selected warehouse air-quality parameters is required.
Depending on the selected sensor configuration, fixed monitoring may include parameters such as:
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PM2.5
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PM10
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CO₂
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TVOC
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Formaldehyde
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Temperature
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Humidity
The required sensors must be confirmed before ordering. Different FS11301 versions should not be assumed to measure the same parameters.
Basic Warehouse Monitoring Plan
A practical plan may include:
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Identify sensitive stored products.
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Review their storage requirements.
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Inspect heat, moisture and dust sources.
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Place temporary data loggers at several levels.
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Record conditions for a representative period.
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Conduct portable PM and air-quality checks.
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Compare loading periods with quiet periods.
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Identify the worst-performing zones.
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Correct ventilation or storage problems.
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Repeat the measurements.
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Install permanent monitoring where required.
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Review trends regularly.
The monitoring period should include normal production, loading and weekend conditions where relevant.
Checking Warehouse Ventilation
Poor ventilation may contribute to heat, humidity, dust and CO₂ buildup.
Check:
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Exhaust fans
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Supply-air openings
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Louvres
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Air-conditioning outlets
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Return-air grilles
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Blocked air paths
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Fan rotation
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Filters
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Door operation
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Air movement behind racks
An anemometer can measure air velocity at vents and outlets. Low airflow may indicate blocked filters, fan problems or poor distribution.
Warehouse Temperature Mapping
A basic temperature-mapping exercise can help identify:
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Hot zones near the roof
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Sun-affected walls
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Cold areas beside air-conditioning
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Temperature differences between rack levels
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Areas affected by loading doors
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Poorly circulated corners
Place loggers at several representative positions and synchronise their recording times.
Compare:
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Maximum temperature
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Minimum temperature
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Average condition
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Time of peak temperature
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Duration outside the required range
The mapping method should match the sensitivity and requirements of the stored products.
Common Warehouse-Monitoring Mistakes
Using Only One Spot Reading
It may miss overnight or afternoon peaks.
Placing the Logger Beside Air-Conditioning
This may show the supply-air condition instead of the product-storage condition.
Monitoring Only at Floor Level
Upper racks may be considerably warmer.
Ignoring Loading Doors
Outdoor air, haze and humidity may enter during loading.
Using CO₂ as a Complete Air-Quality Result
Dust, VOCs and specific gases require their own sensors.
Measuring an Empty Warehouse Only
Occupancy and loading activities may change the condition.
Installing Fixed Monitors Before Mapping
Temporary monitoring should first identify the best permanent locations.
Collecting Data Without Reviewing It
Recorded data is useful only when alarm events and trends lead to action.
Corrective Actions for Poor Warehouse Conditions
Depending on the findings, possible improvements include:
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Repairing ventilation fans
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Cleaning filters
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Improving air circulation
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Adding insulation
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Reducing direct sunlight
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Repositioning sensitive stock
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Improving door management
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Installing dehumidification
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Increasing suitable outdoor-air supply
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Separating chemical products
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Improving dust control
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Adding permanent monitoring
Measurements should be repeated after changes to verify whether the warehouse condition improves.
Questions to Ask Before Buying Monitoring Equipment
Before selecting instruments, determine:
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Which products are stored?
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What temperature and humidity ranges are required?
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Is spot checking or continuous logging needed?
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How large is the warehouse?
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How many rack levels require monitoring?
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Are PM, CO₂ or TVOC measurements needed?
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Is remote monitoring required?
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Must alarms be sent when conditions change?
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Is portable mapping required before fixed installation?
These questions determine the appropriate combination of portable meters, data loggers and fixed monitoring.
Factory Warehouse Monitoring Equipment Supplier Malaysia
MTM Precision supplies temperature and humidity data loggers, Temtop air-quality monitors, airflow meters and fixed environmental monitoring solutions for Malaysian factory warehouses.
Contact MTM Precision with details of the stored products, warehouse size, required parameters and monitoring period to discuss a suitable solution.
Contact MTM Precision
MTM Precision Sdn. Bhd.
Showroom & Service Centre
No. 29-1 & 29-2, Jalan Bandar 18,
Pusat Bandar Puchong,
47160 Puchong, Selangor, Malaysia
🌐 Website: www.mtmpre.com.my
📧 Email: mtmpre@yahoo.com
📱 WhatsApp: +6016-660 7346
01 Sep 2026
