Industrial belt
The Pasir Gudang estate covers about 8,000 acres and houses petrochemical, engineering and other industries, away from the city core.
Johor Bahru · intrinsically safe
Intrinsically Safe Mobile Phone in Johor Bahru
Johor Bahru is the state capital of Johor at the southern tip of Peninsular Malaysia, next to Singapore. Heavy industry sits at Pasir Gudang, home to Johor Port with a liquid terminal, and further east at the Pengerang complex, so Zone 1 work is outside the city centre. If you are specifying an intrinsically safe mobile phone for Johor Bahru and Pasir Gudang, this page covers the markings, the approvals and the current certification status of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
Marking targetEx ib IIC T4Intrinsic safety, Zone 1 / 21 design target · certification in progress
AvailabilityQ4 2026via authorised distributors
Search topicintrinsically safe
DeviceMobile Phone
RouteSpecification
WhereJohor Bahru
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Johor Bahru and Pasir Gudang: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Where things stand: the IS-04Z1 has not launched, and none of its four certification routes has produced a certificate yet. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
At a glance · intrinsically safe
Checklist: intrinsically safe mobile phone for Johor Bahru and Pasir Gudang
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Level of protection | ia, ib or ic matched to the zone | ib, for Zone 1 |
| Entity parameters | Uo, Io and Po within the device limits | Published with the certificate |
| Accessories | Chargers and cases certified with the device | Defined at certification |
| Where it applies | Johor Bahru and Pasir Gudang: Port liquid bulk terminals, Petrochemical and oleochemical plants, Refinery and petrochemical process units (Pengerang) | Classified by the site operator |
Product · Johor Bahru
The product behind this search: the SAMS IS-04Z1.
SAMS IS-04Z1
An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Johor Bahru. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
- IP68 sealed
- 4,000 mAh battery
- 50 MP camera
- Android 16
- Zone 1 / Zone 21 design target
The site · Johor Bahru and Pasir Gudang
Johor Bahru and Pasir Gudang at a glance: who is there, what is classified
A short profile of the site and the kinds of classified area that matter for portable equipment.
Operators and companies on site
- Johor Port (Pasir Gudang)
- PETRONAS (Pengerang Integrated Complex)
Classified areas to expect
- Port liquid bulk terminals
- Petrochemical and oleochemical plants
- Refinery and petrochemical process units (Pengerang)
- Fuel and chemical storage
Local conditions · Johor Bahru and Pasir Gudang
What Johor Bahru and Pasir Gudang means for portable equipment
Cross-border access
The Johor-Singapore Causeway links the city to Singapore, so supply and specialist services often move between the two.
Field notes · Johor Bahru and Pasir Gudang
More about Johor Bahru and Pasir Gudang that matters for portable equipment
Johor Bahru and Pasir Gudang: industry on the ground
The Pengerang Integrated Petroleum Complex, in the Pengerang municipality of Johor, is described as the largest petrochemical complex in Malaysia and a major petrochemical hub internationally.
Johor Bahru and Pasir Gudang: geography and layout
Johor Bahru lies at the southern end of the Malay Peninsula directly across from Singapore, and its Causeway, rail link and future RTS Link make it the site of the busiest land border crossing in the world.
Johor Bahru and Pasir Gudang: rules and approvals
Pengerang became a special local authority area in January 2017 and a municipal council in January 2020, covering about 128,830 hectares, so permits and site rules there come from a newly formed local authority.
Johor Bahru and Pasir Gudang: people and language
With a 2020 population of 858,118, Johor Bahru is Malaysia's largest state capital by population, and the surrounding district is the country's second-largest by population and economy, giving a deep local labour pool.
The term · intrinsically safe
What “intrinsically safe” means for a smartphone
Intrinsic safety limits the electrical and thermal energy in a circuit so that neither a spark nor a hot surface can ignite a gas or dust atmosphere, even when a fault occurs. The ib level, used for Zone 1, tolerates one fault. It is the usual way to make a handheld device that a worker carries continuously through a hazardous area.
The IS-04Z1 is designed on this principle for Zone 1 and Zone 21 (marking target II 2 G Ex ib IIC T4). Intrinsic safety is a design basis, not a certificate: certification is in progress and none has been issued yet.
In Johor Bahru and Pasir Gudang. Operators at the port and in the Pengerang complex walk tank farms, jetties and process units on routine inspections and turnarounds. A handheld that is intrinsically safe lets staff photograph equipment, log readings and complete permits without leaving classified areas. That is the intended role of the IS-04Z1, once certified and accepted.
The route · specification
Specifying an intrinsically safe mobile phone for Johor Bahru
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Check on the paper
- Marking
- Equipment group, category, protection concept, gas group and temperature class, matched to the area drawing.
- Certificate and schedule
- A certificate number, issuing body and the schedule of conditions, not a brochure claim.
- Standards edition
- The IEC 60079 or national standard edition the certificate was issued against.
Check for the IS-04Z1
- Marking target
- II 2 G Ex ib IIC T4: a target, not yet a certificate.
- Certificate status
- IECEx, ATEX, UKEX and NEC 500 in progress; none issued.
- Operator approval
- Separate from the certificate and handled with the site operator.
Questions · Johor Bahru
Frequently asked questions
Can we buy an intrinsically safe mobile phone in Johor Bahru today?
Not today. Until the certificates are issued the IS-04Z1 stays out of classified areas, and until launch there is nothing to purchase. You can ask for the datasheet and the certification schedule, or book a safe-area evaluation unit.
What does an intrinsically safe mobile phone in Johor Bahru cost?
There is no list price yet. SAMS gives indicative pre-launch pricing in writing, against a stated quantity and site, and does not commit to a lead time before certification completes.
What does ‘intrinsically safe’ mean for the IS-04Z1?
The circuits are designed to limit energy so a spark or hot surface cannot ignite a gas or dust atmosphere, even with one fault (level ib, Zone 1). Certification of that design is in progress.
Which areas at Johor Bahru and Pasir Gudang would use it?
Likely candidates are port liquid bulk terminals, petrochemical and oleochemical plants, refinery and petrochemical process units (pengerang), fuel and chemical storage. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Is intrinsically safe the same as explosion proof?
Not exactly. Explosion proof is a broad everyday term; intrinsic safety is one protection concept, which limits energy so ignition cannot occur. Flameproof (Ex d) is a different concept that contains an explosion. The IS-04Z1 is intrinsically safe by design.
Where are the hazardous-area industrial sites around Johor Bahru?
The best known is the Pengerang Integrated Petroleum Complex, a large petrochemical hub in southeast Johor, and there are other industrial estates across the district. Each operator classifies its own plant, so ask for zone drawings and device rules before bringing handheld equipment.
Who governs the Pengerang area for permits and site access?
Pengerang has been a municipal council since January 2020, after becoming a local authority in 2017, within Kota Tinggi District of Johor. Plant access is controlled by each operator, so check both the municipal and plant-level induction requirements.
Does heavy monsoon rain matter for an Ex handheld in Johor?
Rain is concentrated in the monsoon periods and humidity stays high all year. IP68 is designed to cope with water and dust, but it does not provide explosion protection. Check the certified ambient range and keep the device dry in charging areas. Ask the plant about its portable device rules.
Related guides
Keep exploring
Related guides for Johor Bahru and for Malaysia.
ATEX and IECEx Mobile Phone Distributor in Johor BahruSame place, different guide
Ex-Proof Mobile Phone in Johor BahruSame place, different guide
Explosion-Proof Mobile Phone in Johor BahruSame place, different guide
IECEx Mobile Phone Distributor in Johor BahruSame place, different guide
Rugged Mobile Phone Distributor in Johor BahruSame place, different guide
Industrial Mobile Phone in Johor BahruSame place, different guide
Malaysia market guideCertification route and regulators
All guides for MalaysiaEvery route we cover
Certification statusWhat is in progress
Enquiry · Johor Bahru and Pasir Gudang
Ask about the IS-04Z1 for Johor Bahru and Pasir Gudang, Malaysia
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Enquiry · Johor Bahru and Pasir Gudang
Launching Q4 2026
Planning for Johor Bahru?
Name the site and the operator and we will send what is available before launch.