How to Find an LPG Gas Leak with TASI TA702A & TA702B Malaysia
How to Find an LPG Gas Leak with TASI TA702A & TA702B Malaysia
When an LPG leak is suspected, knowing that combustible gas is present is only part of the job.
For maintenance and troubleshooting, the next question is often:
“Where is the LPG leaking from?”
The TASI TA702A and TA702B Combustible Gas Detectors can be used for applicable combustible gas leak detection and leak-locating work.
The flexible sensing probe allows technicians to check individual regulators, valves, hoses, fittings and equipment connections where leakage may be suspected.
Where Should You Check for an LPG Leak?
LPG installations can contain several potential inspection points.
Depending on the system, technicians may need to check areas such as:
Regulators
Gas valves
Pipe joints
Flexible hoses
Hose connections
Fittings
Manifolds
Equipment connections
Cooking appliance connections
Recently serviced components
Instead of checking only one point, inspect the relevant gas path systematically.
A simple sequence may be:
Gas Supply → Regulator → Pipe → Valve → Hose → Equipment
Why a Flexible Probe Is Useful
Some gas connections are difficult to reach.
They may be:
Behind equipment
Under cooking appliances
Between pipes
Near walls
Inside equipment spaces
Around crowded valve assemblies
The TASI TA702 Series uses a flexible extension probe, allowing the sensing area to be brought closer to suspected leakage points.
The LED illumination can also help when checking poorly illuminated locations.
Using TASI TA702A to Locate an LPG Leak
The TA702A is particularly useful when the main objective is leak locating.
It provides three sensitivity levels:
High / Medium / Low
This gives technicians a practical way to progressively narrow down a suspected leak.
Step 1 – Start with General Screening
Begin according to the instrument instructions and applicable site safety procedure.
Check the relevant area around the suspected gas installation.
Step 2 – Identify a Stronger Response
If the detector begins responding, move systematically around individual components rather than moving randomly.
For example:
Regulator → Valve → Joint → Hose → Appliance Connection
Step 3 – Narrow Down the Area
As the suspected area becomes smaller, adjust sensitivity as appropriate.
The objective is to determine which connection or component produces the strongest response.
Step 4 – Investigate the Suspected Source
Once a particular component is suspected, follow the appropriate maintenance and safety procedure.
A gas detector helps identify a suspected leakage location; it does not replace proper repair and verification procedures.
Using TASI TA702B for LPG Inspection
The TA702B provides additional information during combustible gas inspection.
It supports ppm / LEL indication, together with ambient temperature and concentration trend information.
This can help when comparing detector response at different locations.
For example:
Point A – Regulator
Point B – Valve
Point C – Hose Connection
Point D – Equipment Connection
The operator can observe changes while approaching different potential leakage points.
TA702A vs TA702B for LPG Leak Detection
Both models are intended for combustible gas detection, but their user experience differs.
TASI TA702A
Best suited when the main question is:
“Where is the suspected leak?”
Its High / Medium / Low sensitivity adjustment is useful for leak tracing.
TASI TA702B
Consider TA702B when the operator also wants:
ppm / LEL indication and additional concentration information.
For straightforward maintenance leak locating, TA702A may be sufficient.
For users wanting more displayed information during inspection, TA702B provides additional functionality.
LPG Leak Detection in Commercial Kitchens
One important application is commercial kitchen maintenance.
Potential users include:
Restaurants
Hotels
Food courts
Central kitchens
Catering facilities
Food factories
Commercial kitchen contractors
Gas connections can be positioned behind or below cooking equipment, making a flexible probe useful during troubleshooting.
A technician may inspect:
Regulator → Main Pipe → Valve → Flexible Hose → Cooking Equipment
according to the system configuration and applicable procedures.
LPG Leak Detection in Factory Maintenance
LPG and other combustible gases may also be encountered in industrial applications.
Factory maintenance teams may need to investigate suspected leakage around applicable:
Process equipment
Burners
Heating equipment
Gas pipelines
Regulators
Valves
Machinery connections
Portable leak detection can form one part of an appropriate preventive maintenance or troubleshooting process.
Can You Rely on Smell Alone?
LPG may be odorized to help people notice a leak, but smell alone should not be treated as a substitute for appropriate gas detection and safety procedures.
A detector provides an instrument response that can help a technician investigate a suspected leakage area.
If a significant gas leak is suspected, follow the site's emergency and safety procedures rather than continuing routine troubleshooting.
Is TA702 a Replacement for a Fixed LPG Alarm?
No.
A portable gas leak detector and a fixed gas detection system perform different functions.
The TA702 Series is designed for portable combustible gas detection and leak locating.
A fixed monitoring system may be designed to continuously monitor an area and may form part of alarm, ventilation or shutdown arrangements.
Choose the system according to the actual safety requirement.
Is TA702 Suitable for Confined Space Entry?
Do not select the TA702 Series simply because it detects combustible gas if the actual requirement is confined-space atmospheric monitoring.
Confined-space work may require appropriately specified equipment for hazards such as:
O₂ + Combustible Gas + CO + H₂S
together with the required safety procedures.
A combustible gas leak detector and a personal multi-gas detector are not automatically interchangeable.
Common Question: Which Model Should Our Maintenance Team Buy?
Start with the application.
If technicians mainly need to:
Find suspected LPG leaks around pipes, valves and connections
consider TA702A.
If they also want:
ppm / LEL indication and more concentration information
consider TA702B.
If the requirement is:
Personal atmospheric safety monitoring
look at an appropriately specified gas monitor instead.
Looking for an LPG Gas Leak Detector in Malaysia?
MTM Precision supplies portable test and measurement instruments for factory maintenance, restaurant maintenance, hotel engineering, facility management and industrial troubleshooting.
Tell us where you intend to use the detector:
Restaurant kitchen?
Hotel?
Factory?
Gas pipeline?
Maintenance contractor?
Also tell us whether you need leak locating or atmospheric safety monitoring.
This makes it much easier to select the correct type of gas detector.
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
Serving customers throughout Malaysia including Selangor, Kuala Lumpur, Johor, Penang, Melaka, Negeri Sembilan, Perak, Pahang, Kelantan, Terengganu, Kedah, Perlis, Sabah and Sarawak.
27 Sep 2026
