Cross-border access
The Johor-Singapore Causeway links the city to Singapore, so supply and specialist services often move between the two.
Johor Bahru is the state capital of Johor at the southern tip of Peninsular Malaysia, next to Singapore. 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. An intrinsically safe mobile phone distributor in Johor Bahru and Pasir Gudang would carry the IS-04Z1 to these buyers once certification completes.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. Johor Bahru and Pasir Gudang has no appointed SAMS distributor yet: the IS-04Z1 is pre-launch (certification in progress, no certificate issued, launch planned for Q4 2026), and distributor applications are open.
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.
| 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: Refinery and petrochemical process units (Pengerang), Fuel and chemical storage, Port liquid bulk terminals | Classified by the site operator |

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.
Who operates there and which kinds of classified area a handset would meet, from the SAMS site research.
The Johor-Singapore Causeway links the city to Singapore, so supply and specialist services often move between the two.
Hot and humid all year with about 2,350 mm of annual rain, concentrated in the monsoon periods.
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 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.
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 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.
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.
Distribution of the IS-04Z1 is by authorised partners only, and SAMS has not yet granted a territory for Johor Bahru and Pasir Gudang. Each application is reviewed on its merits. Because opening a certified Ex handset in an ordinary workshop invalidates its certificate, the partner must be able to support and service the device locally.
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.
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.
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.
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.
Apply through the distributor page with your company details and the territory you cover. SAMS reviews applications company by company and has not yet granted a territory for Johor Bahru and Pasir Gudang.
An equatorial climate with high humidity, around 2,350 mm of rain a year and steady warm temperatures means moisture ingress and condensation are the main concerns. Devices typically need good sealing and cleaning routines, subject to the plant's rules.
Its position beside Singapore, the Iskandar special economic zone and the Causeway make cross-border supply practical, though customs procedures and border queues apply. Confirm duty treatment, radio type approval and site gate requirements with your freight agent.
No. Pasir Gudang is an industrial estate with a port and many plants, while Pengerang is a separate complex east of Johor Bahru. Each operator sets its own procurement, HSE and classification rules, so ask the specific plant for its requirements.
Related guides for Johor Bahru and for 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.
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.