Gresik
Gresik lies about 25 kilometres north-west of Surabaya, and its two largest factories are Semen Gresik and Petrokimia Gresik.
Surabaya · IECEx
IECEx Mobile Phone in Surabaya
The city hosts a large shipyard and several naval schools, and in the Dutch colonial era hosted the most extensive naval base in the colony, so marine and ship-repair work is a core local activity. The Surabaya Industrial Estate Rungkut and neighbouring Gresik, with a fertiliser plant and cement works, hold the chemical, fuel and process areas where Zone 1 and Zone 21 equipment applies. This page explains what to look for in an IECEx mobile phone for Surabaya and the Gresik industrial area, 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
WhereSurabaya
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Surabaya and the Gresik industrial area: 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. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
At a glance · IECEx
Checklist: IECEx mobile phone for Surabaya and the Gresik industrial area
| 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 | Surabaya and the Gresik industrial area: Port fuel and chemical handling, Fertiliser and chemical plants, Cement plant dust areas | Classified by the site operator |
Product · Surabaya
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 Surabaya. 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 · Surabaya and the Gresik industrial area
Working in Surabaya and the Gresik industrial area: 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
- PT Pelindo
- PT Petrokimia Gresik
- Semen Gresik
- PT SIER (Surabaya Industrial Estate Rungkut)
Classified areas to expect
- Port fuel and chemical handling
- Fertiliser and chemical plants
- Cement plant dust areas
- Industrial estate chemical plants
Local conditions · Surabaya and the Gresik industrial area
Conditions in Surabaya and the Gresik industrial area that affect handheld equipment
Port-led logistics
Tanjung Perak is the main port for eastern Java, so imported equipment normally arrives by sea.
Field notes · Surabaya and the Gresik industrial area
More about Surabaya and the Gresik industrial area that matters for portable equipment
Surabaya and the Gresik industrial area: climate and equipment wear
Surabaya has a tropical wet and dry climate with a wet season from October to May, steady average highs near 31 degrees Celsius and lows near 23 degrees all year.
Surabaya and the Gresik industrial area: infrastructure
The Suramadu Bridge links Surabaya to Madura island and its completion has influenced the local economy, adding road access across the Madura Strait for industry and logistics.
Surabaya and the Gresik industrial area: background
A long record as a trading port has produced strong financial infrastructure, with banks, insurers and export-import companies, so procurement, customs brokerage and freight services are easy to find.
Surabaya and the Gresik industrial area: logistics and access
Juanda International Airport, about 12 km from central Surabaya in Sidoarjo, is Indonesia's third busiest airport and served around 500 aircraft a day in 2019, with Batik Air and Citilink using it as a hub.
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 Surabaya and the Gresik industrial area. Visiting engineering firms and international customers of the Gresik fertiliser and cement works often refer to IECEx. A certificate of conformity with a schedule of conditions would be reviewed. For the IS-04Z1 these are targets, not issued, so no purchase should rely on them yet.
The route · specification
Specifying an IECEx mobile phone for Surabaya
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 · Surabaya
Frequently asked questions
Can we buy an IECEx mobile phone in Surabaya 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 Surabaya 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 Surabaya and the Gresik industrial area would use it?
Likely candidates are port fuel and chemical handling, fertiliser and chemical plants, cement plant dust areas, industrial estate chemical plants. 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.
How do I move equipment between Surabaya and Madura or other East Java sites?
The Suramadu Bridge links Surabaya and Madura by road, and Tanjung Perak serves sea freight to eastern Indonesia. Allow time for customs clearance and for any site gate checks on electronic devices at plants and terminals.
Why is Surabaya a useful base for marine and shipyard work?
It has Indonesia's second-busiest seaport, a large shipyard and naval facilities, plus freight forwarders and customs brokers. Marine work typically involves tank entry and hot work, so confirm each yard's permit rules for portable electronic devices.
Can one handset serve both chemical plants and cement works around Surabaya?
Not necessarily. Chemical and fuel areas are gas hazards, while cement works are dust areas, and each needs a suitable marking. The IS-04Z1 target marking covers gas only. Check each area's classification with the operator.
Related guides
Keep exploring
Other guides for Surabaya, other places in Indonesia, and the pages behind them.
Rugged Mobile Phone in SurabayaSame place, different guide
Ex-Proof Mobile Phone in SurabayaSame place, different guide
Hazardous Area Mobile Phone Distributor in SurabayaSame place, different guide
Intrinsically Safe Mobile Phone Distributor in SurabayaSame place, different guide
ATEX and IECEx Mobile Phone Distributor in SurabayaSame place, different guide
Industrial Mobile Phone in SurabayaSame place, different guide
ATEX and IECEx Mobile Phone Distributor in Batam ShipyardElsewhere in Indonesia
ATEX and IECEx Mobile Phone Distributor in Timika MiningElsewhere in Indonesia
ATEX and IECEx Mobile Phone Distributor in Offshore IndonesiaElsewhere in Indonesia
ATEX and IECEx Mobile Phone Distributor in Indonesia MiningElsewhere in Indonesia
Indonesia market guideCertification route and regulators
All guides for IndonesiaEvery route we cover
Certification statusWhat is in progress
Enquiry · Surabaya and the Gresik industrial area
Ask about the IS-04Z1 for Surabaya and the Gresik industrial area, Indonesia
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 · Surabaya and the Gresik industrial area
Launching Q4 2026
Planning for Surabaya?
Send the zone and gas group of your site and we will reply with the datasheet and schedule.