Cross-border access
The Johor-Singapore Causeway links the city to Singapore, so supply and specialist services often move between the two.
Johor Bahru · hazardous area
Hazardous Area Smartphone in Johor Bahru
Johor Bahru is the state capital of Johor at the southern tip of Peninsular Malaysia, next to Singapore. 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. This page explains what to look for in a hazardous area smartphone for Johor Bahru and Pasir Gudang, and where the IS-04Z1 stands against that list today.
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 topichazardous area
DeviceSmartphone
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.
For the record, no certificate exists for the IS-04Z1 today. The programme is under way ahead of a Q4 2026 launch. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
At a glance · hazardous area
Checklist: hazardous area smartphone for Johor Bahru and Pasir Gudang
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Zone | 0, 1 or 2 for gas; 20, 21 or 22 for dust | Designed for Zone 1 and Zone 21 |
| Gas group | IIA, IIB or IIC | IIC (target) |
| Area drawing | The operator's own classification drawing | Decided by the site operator |
| 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
Working in Johor Bahru and Pasir Gudang: operators and classified areas
The companies on site and the hazardous-area types a handset is likely to meet there.
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
Conditions in Johor Bahru and Pasir Gudang that affect handheld equipment
Tropical climate
Hot and humid all year with about 2,350 mm of annual rain, concentrated in the monsoon periods.
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
Local industries include plastic manufacturing, electrical and electronics and food processing, so the city is a base for factory and warehouse work, while the heavy petrochemical sites lie further out in Johor.
Johor Bahru and Pasir Gudang: background
Rail from the city to Woodlands in Singapore was built in the 1880s and 1890s, the Peninsula railway extension finished in 1909, and the Causeway opened in 1923, so cross-border links are long established.
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.
The term · hazardous area
What “hazardous area” means for a smartphone
A hazardous area is a place where flammable gas, vapour or combustible dust may be present. Standards divide these into zones: Zones 0, 1 and 2 for gas and vapour, and Zones 20, 21 and 22 for dust. Zone 1 and Zone 21 are the tier where an explosive atmosphere is likely to occur in normal operation, which is where the IS-04Z1 is designed to work. Anything carried in must be marked for the zone, gas group and temperature class of the area.
No certificate has been issued for the IS-04Z1 yet, so it must not be taken into a classified area until the certificate covering it exists and the site operator has accepted it.
In Johor Bahru and Pasir Gudang. The classified areas in the Johor Bahru belt include port liquid bulk terminals, petrochemical and oleochemical plants, refinery and petrochemical process units at Pengerang and fuel and chemical storage. Operators classify these, not SAMS. Zone 1 work lies outside the city centre, so ask each plant for its drawings.
The route · specification
Specifying a hazardous area smartphone 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 a hazardous area smartphone in Johor Bahru today?
Not yet. The IS-04Z1 is pre-launch and its certification is still in progress ahead of a Q4 2026 launch. No unit goes into a classified area before the certificate covering it exists. The datasheet, the certification schedule and safe-area evaluation units are available now.
What does a hazardous area smartphone 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.
Which hazardous areas is the IS-04Z1 designed for?
Zone 1 and Zone 21 (gas and dust) with gas group IIC and temperature class T4, subject to certification. It must not be used in a classified area before its certificate is issued and the site has accepted it.
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.
Ex-Proof Mobile Phone in Johor BahruSame place, different guide
IECEx Mobile Phone Distributor in Johor BahruSame place, different guide
Industrial Mobile Phone Distributor in Johor BahruSame place, different guide
Rugged Mobile Phone Distributor in Johor BahruSame place, different guide
Explosion-Proof Mobile Phone Distributor in Johor BahruSame place, different guide
Intrinsically Safe 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
Share the site details and quantity. You will get the datasheet and the certification schedule back by email; pricing is indicative only until launch.
Enquiry · Johor Bahru and Pasir Gudang
Launching Q4 2026
Planning for Johor Bahru?
Send the zone and gas group of your site and we will reply with the datasheet and schedule.