Gresik
Gresik lies about 25 kilometres north-west of Surabaya, and its two largest factories are Semen Gresik and Petrokimia Gresik.
Satellite cities of Mojokerto, Gresik, Sidoarjo, Bangkalan and Lamongan form the wider metropolitan area, which is where much heavier industry and port-side plants are found around the city. 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. Distribution partners for Surabaya and the Gresik industrial area are being identified ahead of the Q4 2026 launch of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. Surabaya and the Gresik industrial area 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.
Current position: certification in progress, nothing issued, launch targeted for Q4 2026. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Protection concept | Flameproof (Ex d) or intrinsic safety (Ex i) | Intrinsic safety, level ib |
| Zone suitability | Zone 1 gas and Zone 21 dust | Design target for Zone 1 and 21 |
| Certificate | Number, issuing body and schedule of conditions | In progress; not issued |
| Where it applies | Surabaya and the Gresik industrial area: Cement plant dust areas, Industrial estate chemical plants, Port fuel and chemical handling | Classified by the site operator |

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.
A short profile of the site and the kinds of classified area that matter for portable equipment.
Gresik lies about 25 kilometres north-west of Surabaya, and its two largest factories are Semen Gresik and Petrokimia Gresik.
Tanjung Perak is the main port for eastern Java, so imported equipment normally arrives by sea.
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.
Surabaya is the capital of East Java and Indonesia's second-largest city, on the Madura Strait, and its metropolitan area of about 6,309 sq km has an estimated 10.08 million people.
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.
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.
“Explosion proof” is the phrase most buyers use for equipment that may be taken into a classified hazardous area. Strictly, it covers several protection concepts: a flameproof enclosure (Ex d) contains an internal explosion, while intrinsic safety (Ex i) limits electrical energy so that an ignition cannot start. Phones are normally intrinsically safe, because a flameproof handset would be too heavy to carry all shift.
The IS-04Z1 uses intrinsic safety, with a marking target of Ex ib IIC T4, and is designed for Zone 1 and Zone 21. It is pre-launch, certification is in progress and no certificate has been issued.
In Surabaya and the Gresik industrial area. Across port fuel handling, fertiliser and chemical plants and cement works, explosion-proof covers different realities. Flameproof Ex d suits fixed motors; a handheld used on foot around chemical and fuel areas relies on intrinsic safety; cement dust areas need a dust approach.
A distributor for Surabaya and the Gresik industrial area would carry the IS-04Z1 after certification completes; the Q4 2026 launch is the planning date and no appointment has been made. SAMS reviews applicants one by one and prefers companies with their own Ex-competent technical and service staff, since certified devices must not be repaired outside approved channels.
No. Nothing can be bought or taken into a classified area today: certification is in progress and launch is planned for Q4 2026. What is available now is the datasheet, the written certification schedule and evaluation units for safe-area use.
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.
It is intrinsically safe (marking target Ex ib IIC T4), which is the usual way to make a phone for hazardous areas. It is not a flameproof (Ex d) design, and certification is still in progress.
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.
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 Surabaya and the Gresik industrial area.
Temperatures are steady, around 23 to 31 degrees, but the wet season from October to May brings heavy rain and humidity, and coastal air adds salt. Devices typically need good ingress protection and cleaning routines for exposed use.
The wider metropolitan area includes Gresik, Sidoarjo and other satellite cities with port-side and industrial plants. Typical hazards include fuel, chemical and bulk handling, so ask each operator for its zone classification and device approval requirements.
Yes in practice. Gresik lies about 25 kilometres north-west of Surabaya, and its fertiliser and cement works are major buyers of safety equipment. Requirements are set plant by plant. Confirm with each site operator's safety function.
Other guides for Surabaya, other places in Indonesia, and the pages behind them.
Share the site details and quantity. You will get the datasheet and the certification schedule back by email; pricing is indicative only until launch.
Send the zone and gas group of your site and we will reply with the datasheet and schedule.