TASI TA661B Digital Moisture Meter FAQ & Complete Buying Guide Malaysia
TASI TA661B Digital Moisture Meter FAQ & Complete Buying Guide Malaysia
Is the TASI TA661B only for wood?
Can it check wall moisture?
Can it be used for brick, gypsum board or cement mortar?
Can it find a leaking pipe?
What is the difference between moisture percentage and relative humidity?
The TASI TA661B Digital Moisture Meter is a portable pin-type moisture meter designed for moisture measurement across multiple supported material categories. It also provides ambient temperature and relative humidity measurement, making it useful for wood QC, renovation, property maintenance and building inspection applications in Malaysia.
This guide answers the common questions buyers should consider before choosing the TA661B.
What Is the TASI TA661B?
The TASI TA661B is a multi-material digital moisture meter.
Unlike a basic meter intended primarily for wood, the TA661B supports different material categories for applications involving wood and selected building materials.
Typical applications include:
Timber
Plywood
Furniture
Wooden flooring
Wooden doors
Cement mortar
Gypsum board
Brick
Wall surfaces
Renovation inspection
Building maintenance
This makes the TA661B particularly useful for users who do not work with only one type of material.
What Is the Moisture Measurement Range?
The TA661B provides moisture measurement ranges according to the selected material category, with ranges extending up to 54.8% depending on the material category.
This distinction is important.
Do not assume that 0–54.8% represents one identical universal range for every material.
Always select the appropriate material mode before measurement.
What Is the Resolution?
The TA661B provides 0.1% resolution for moisture measurement.
This can be useful when comparing:
Different parts of the same timber
Different sheets of plywood
Different points on a wall
Before-and-after repair measurements
Drying trends
Different material batches
Resolution describes the displayed measurement increment and should not be confused with accuracy.
What Is the Moisture Accuracy?
The TA661B has a stated moisture measurement accuracy of ±1% according to its product specification.
Actual measurement usefulness also depends on correct operation, including:
Correct material category
Consistent probe contact
Suitable measurement locations
Proper comparison
Appropriate interpretation
Measurement technique remains important.
Is TASI TA661B a Pin-Type Moisture Meter?
Yes.
The TA661B is a pin-type moisture meter.
Its measurement pins contact the material during moisture testing.
This is useful for direct spot measurements where probe contact is acceptable.
Will the Pins Leave Marks?
They can leave small probe marks on the tested surface.
This should be considered when measuring:
Finished furniture
Decorative wood
Premium flooring
Finished wall surfaces
If marking the surface is unacceptable, consider whether a pinless measurement method is more suitable for the application.
Can TASI TA661B Measure Wood?
Yes.
Wood and timber are important applications for the TA661B.
Potential users include:
Timber suppliers
Furniture manufacturers
Carpenters
Flooring contractors
Woodworking factories
Warehouse QC teams
Instead of checking only one location, take several readings across the material.
Can It Measure Plywood?
Yes, plywood is one of the useful wood-related applications.
For incoming QC, consider sampling:
Different Pallets → Different Sheets → Multiple Points
This provides more useful information than measuring only one sheet from an entire delivery.
Can TA661B Be Used for Furniture Manufacturing?
Yes.
Furniture factories can incorporate moisture measurement into:
Incoming Material → Warehouse → Pre-Production → Manufacturing QC → Troubleshooting
This can help identify unusual timber or plywood conditions before additional production work is carried out.
Can It Check Wooden Flooring?
Yes, the TA661B can support wood-flooring moisture inspection.
Potential applications include:
Material checking before installation
Comparing different flooring packs
Troubleshooting swollen flooring
Investigating moisture after water exposure
Post-repair monitoring
Professional flooring projects may have specific substrate moisture-testing requirements, so follow the relevant project or flooring manufacturer's procedure where applicable.
Can TA661B Check Wooden Doors?
Yes.
It can help compare moisture conditions across:
Top → Middle → Bottom
of a wooden door or frame.
This can be useful when investigating swelling, warping or water exposure.
However, moisture is not the only possible cause of door movement.
Can TASI TA661B Measure Wall Moisture?
The TA661B supports moisture inspection for selected building-material categories and can be used for comparative wall-moisture applications where the material is supported.
For example, it can help compare:
Normal Area → Suspicious Area → Surrounding Area
This is useful for basic moisture mapping.
Can It Measure Brick?
Yes, brick is among the supported building-material applications.
This can be useful when investigating:
Damp walls
Rainwater penetration
Water damage
Renovation areas
Building maintenance problems
Use the appropriate material category.
Can It Measure Gypsum Board?
Yes.
Gypsum-board applications can include:
Ceiling inspection
Partition walls
Post-leak inspection
Water-damage investigation
Renovation work
Remember that moisture measurement does not replace inspection for physical deterioration or structural condition.
Can It Measure Cement Mortar?
Yes, the TA661B supports cement-mortar-related moisture applications under its appropriate material category.
This can be useful for general building-material screening and comparative inspection.
Can It Measure Concrete?
This requires more careful consideration.
“Concrete” is sometimes used generally on job sites to describe several cement-based materials.
If your project specifically requires concrete slab or screed moisture testing according to a particular flooring, construction or testing standard, confirm the required test method first.
A general handheld moisture meter should not automatically replace a project-specified concrete moisture test.
Can TASI TA661B Find a Water Leak?
The TA661B can help identify unusual moisture conditions.
For example:
Lower Reading → Higher Reading → Higher Reading → Lower Reading
may help identify an area requiring further investigation.
However, it does not directly identify the source of the water.
Can TA661B Find a Hidden Leaking Pipe?
No.
The TASI TA661B is not a hidden-pipe locator.
It does not directly show the exact location of:
Concealed water pipes
Pipe routes
Underground pipes
Exact pipe leakage points
Additional diagnostic methods may be required for leak location.
Can It Check Bathroom Leakage?
It can assist with moisture mapping around suspected bathroom-related problems.
Potential measurement locations include:
Wall outside bathroom
Lower wall
Ceiling below bathroom
Adjacent room
Wooden cabinet
Door frame
A higher or unusual reading does not automatically prove that the bathroom waterproofing has failed.
Further investigation is required.
Can TA661B Confirm Waterproofing Failure?
No.
It can provide moisture information around the suspected area.
Waterproofing assessment may require additional procedures depending on the project.
Use the moisture meter as part of the investigation rather than as automatic proof of waterproofing failure.
Can It Be Used After a Leak Is Repaired?
Yes.
This is one of the useful applications for a portable moisture meter.
Mark several measurement points and compare them over time:
Before Repair → After Repair → Drying → Recheck
Try to measure the same locations using the same technique.
This provides better trend information.
Can It Check a Wall Before Painting?
Yes, the TA661B can support moisture screening before painting on supported wall materials.
This may be useful for:
New plaster work
Repaired walls
Previously damp walls
Post-leak repairs
Renovation projects
However, the final decision to paint should follow the relevant wall, coating and paint-manufacturer requirements.
What Is the Correct Moisture Percentage Before Painting?
There is no single universal percentage that should automatically be applied to every wall and every paint system.
Requirements may depend on:
Wall material
Plaster system
Primer
Coating
Project specification
Paint manufacturer
Use the appropriate requirement for the job.
Does TA661B Measure Temperature?
Yes.
The TA661B provides ambient temperature measurement in addition to material moisture measurement.
Temperature information can provide useful environmental context during inspections.
Does TA661B Measure Relative Humidity?
Yes.
It also provides ambient relative humidity measurement.
This is useful for applications such as:
Warehouse inspection
Furniture production
Building maintenance
Renovation
Damp-area investigation
Is Relative Humidity the Same as Material Moisture?
No.
This is one of the most important points to understand.
Material Moisture → Moisture condition of the tested material
Relative Humidity → Moisture condition of the surrounding air
For example:
70% RH does not mean the timber contains 70% moisture.
The percentages represent different measurements.
Can TA661B Replace a Temperature and Humidity Data Logger?
Not for continuous long-term recording.
The TA661B is useful for portable spot measurements.
If you need to know how temperature and RH change continuously throughout:
A day
A week
A month
a dedicated temperature/RH data logger may be more appropriate.
Does TA661B Have MAX and MIN?
Yes.
MAX/MIN functions can be useful when observing measurement variation during inspection.
For professional work, it is still advisable to record the actual measurement location and material.
Does It Have Data Hold?
Yes.
Data Hold can be useful when the meter display is difficult to read while the probes are positioned on the material.
Does It Have Moisture Alarm Functions?
Yes.
The TA661B provides high/low moisture alarm functions.
Alarm settings should be selected according to the relevant material and application rather than assuming one limit is suitable for every job.
Does It Have Auto Power-Off?
Yes.
According to the MTM product information, the TA661B provides an automatic power-off function after approximately 15 minutes, helping reduce unnecessary battery use when the meter is left inactive.
Why Do I Get Different Readings on the Same Wall?
Possible reasons include:
Moisture is not evenly distributed
Different measurement points
Different underlying materials
Probe-contact differences
Surface condition
Material setting
Previous repairs
Take multiple readings and look for a pattern.
Why Does the Reading Keep Changing?
First check:
Material Mode → Probe Contact → Measurement Location → Material Consistency → Technique
Small changes do not automatically mean the meter is faulty.
If the behaviour remains unusual under controlled, repeatable conditions, contact the supplier for technical assistance.
Should I Take Only One Reading?
No.
For troubleshooting, multiple readings are usually more useful.
For example:
Top → Middle → Bottom
or:
Left → Centre → Right
For timber:
End → Centre → Opposite End
The pattern is often more useful than one isolated value.
Should I Compare Different Materials?
Be careful.
Do not directly compare:
Brick vs Timber
as though the numerical values mean exactly the same thing.
A better approach is:
Timber vs Comparable Timber
Brick vs Comparable Brick
Gypsum vs Comparable Gypsum
Use the appropriate material category for each.
Who Should Consider TASI TA661B?
The TA661B can be useful for:
Renovation contractors
Furniture factories
Timber suppliers
Carpenters
Flooring contractors
Painting contractors
Waterproofing contractors
Property inspectors
Facility maintenance teams
Warehouse QC personnel
Its main advantage is flexibility across multiple supported materials.
When Might Another Instrument Be Better?
Consider another type of instrument if your application specifically requires:
Pinless measurement
No surface marking
Continuous environmental data logging
Direct hidden-pipe location
Specialised leak detection
Project-specified concrete testing
Laboratory testing
No single moisture meter is ideal for every measurement problem.
Why Choose a Multi-Material Moisture Meter?
For a user who only checks timber, a basic wood moisture meter may be enough.
But consider a renovation contractor who needs to inspect:
Wall → Wooden Door → Plywood Cabinet → Gypsum Ceiling → Timber
A multi-material instrument reduces the need for separate basic meters for each routine inspection task.
This is where the TA661B becomes particularly useful.
TASI TA661B Buying Checklist
Before buying, confirm:
What materials do you need to measure?
Is pin-type measurement acceptable?
Do you need building-material measurement?
Do you need temperature and RH?
Are you performing spot checks or continuous monitoring?
Do you need moisture measurement or actual leak location?
Is your project subject to a specified test method?
Do you need local product and technical support?
If you are unsure, explain your application before purchasing.
TASI TA661B Digital Moisture Meter Malaysia
The TASI TA661B Digital Moisture Meter is best understood as a portable, multi-material moisture inspection tool rather than simply a basic wood moisture meter.
Its applications can extend from:
Timber & Furniture
to
Renovation & Building Maintenance
to
Damp-Wall and Post-Leak Inspection
Combined with ambient temperature and relative humidity measurement, it provides contractors, QC teams and maintenance personnel with a practical instrument for everyday moisture-related inspection.
For the TASI TA661B Digital Moisture Meter, quotation, product availability or application advice in Malaysia, contact:
MTM Precision Sdn Bhd
Showroom & Service Centre
No 29-1 & 2, Jalan Bandar 18,
Pusat Bandar Puchong,
47160 Puchong, Selangor.
Tel: 03-8080 7172
WhatsApp: +6016-660 7346
Email: mtmpre@yahoo.com
Website: www.mtmpre.com.my
26 Sep 2026