Tropical climate
Hot and humid all year with about 2,350 mm of annual rain, concentrated in the monsoon periods.
Johor Bahru · IECEx
IECEx Mobile Phone in Johor Bahru
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. 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. This page explains what to look for in an IECEx mobile phone 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 topicIECEx
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.
Status: pre-launch. IECEx, ATEX, UKEX and NEC 500 certification is in progress and no certificate has been issued; launch is planned for Q4 2026. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
At a glance · IECEx
Checklist: IECEx mobile phone for Johor Bahru and Pasir Gudang
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Certificate of conformity | Number checkable on the IECEx online register | In progress; not issued |
| Standards edition | The IEC 60079 edition the certificate cites | Stated on the certificate when issued |
| Schedule of conditions | Limits of use, batteries and accessories | Published with the certificate |
| 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
Industrial belt
The Pasir Gudang estate covers about 8,000 acres and houses petrochemical, engineering and other industries, away from the city core.
Field notes · Johor Bahru and Pasir Gudang
More about Johor Bahru and Pasir Gudang that matters for portable equipment
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.
Johor Bahru and Pasir Gudang: rules and approvals
The city forms Zone A of Iskandar Malaysia, the country's largest special economic zone by investment value, and is part of the Johor-Singapore Special Economic Zone and the Indonesia-Malaysia-Singapore Growth Triangle.
Johor Bahru and Pasir Gudang: climate and equipment wear
Johor Bahru has an equatorial climate with steady temperatures, daily averages between about 26 and 28 degrees Celsius, high humidity all year, around 2,350 mm of rain a year and no cyclones.
The term · IECEx
What “IECEx” means for a smartphone
IECEx is the international scheme for certifying equipment used in explosive atmospheres. A certificate of conformity is issued by an accredited certification body against a specific edition of the IEC 60079 standards and carries a schedule of conditions of safe use. It is not a legal requirement in most countries on its own, but many national schemes accept it as the technical basis.
The IECEx certificate for the IS-04Z1 is in progress and has not been issued. The marking target is Ex ib IIC T4, the intrinsic safety concept for Zone 1 gas with the hardest gas group (IIC) and a 135 °C temperature class.
In Johor Bahru and Pasir Gudang. Because the Johor-Singapore Causeway means supply and specialist services often move between the two places, contractors serving Johor Bahru tend to work to international practice. IECEx offers a certificate of conformity plus a schedule of conditions they can read quickly. The IS-04Z1 IECEx certification is in progress; none exists yet.
The route · specification
Specifying an IECEx 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 IECEx 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 IECEx mobile phone in Johor Bahru cost?
No price is published. While certification is in progress there is no list price and no committed lead time, and a supplier quoting a firm figure for an uncertified Ex handset is promising something it cannot stand behind. Indicative pre-launch pricing is issued in writing against a stated quantity and site.
Does the IS-04Z1 hold an IECEx certificate?
No. The IECEx certificate is in progress and has not been issued. SAMS will publish the number when it exists.
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
More on Johor Bahru, and on other places in Malaysia.
Rugged Mobile Phone in Johor BahruSame place, different guide
Hazardous Area Mobile Phone Distributor in Johor BahruSame place, different guide
Explosion-Proof Mobile Phone in Johor BahruSame place, different guide
Ex-Proof Mobile Phone Distributor in Johor BahruSame place, different guide
Industrial 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
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
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.