Thailand: industry on the ground
Natural gas makes up about 27% of Thailand's total energy supply and fuels roughly 64% of electricity generation, so gas processing, pipelines and power plants dominate classified-area work.
A Zone 1 and Zone 21 handset for the people inside the Thai petrochemical cluster: shift operators on the Map Ta Phut crackers, reliability engineers at Sriracha, jetty and tank farm crews along the Rayong coast, and the safety and IT departments that rule on what passes a gate. Buyers searching for an intrinsically safe smartphone supplier for Thailand can take the datasheet and the certification schedule for the IS-04Z1 now; supply follows certification.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. An intrinsically safe smartphone for Thailand cannot be bought yet: the SAMS IS-04Z1 is pre-launch (certification in progress, no certificate issued), and the datasheet, certification schedule and safe-area evaluation units are available now.
Current position: certification in progress, nothing issued, launch targeted for Q4 2026. Operator approval runs on its own timeline. 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 | Thailand: Chachoengsao, Gulf of Thailand, Map Ta Phut Industrial Estate | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Thailand. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
The classified areas, operators and sites below are the ones covered in the SAMS Thailand market guide.
Natural gas makes up about 27% of Thailand's total energy supply and fuels roughly 64% of electricity generation, so gas processing, pipelines and power plants dominate classified-area work.
The transport sector uses nearly half of oil products and oil is 41% of total energy supply, so fuel depots, filling terminals and distribution sites occur across the whole country.
As of March 2024 Thailand had 34 active petroleum projects across 47 oil fields in the Gulf of Thailand, so offshore platform and supply-base work is a large part of upstream activity.
The Eastern Economic Corridor, set up in 2017, spans three eastern provinces covering 13,266 square kilometres, and follows the earlier Eastern Seaboard programme that financed ports, roads, waterworks and industrial parks.
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 Thailand. Intrinsic safety suits the long shifts and gate discipline of the Rayong estates and the Sriracha refineries, where a worker may carry a single device through many areas. A handheld that limits ignition energy lets crews photograph, log and communicate on a round without leaving the zone, including on open pipe racks.
There is no stock to order for Thailand yet. The IS-04Z1 is pre-launch, certification is in progress, and supply will run through authorised distributors after the certificates are issued. Procurement teams can prepare now with the datasheet, the certification schedule and a safe-area evaluation.
The technical specification, marking target and conditions of use, sent by email.
Which certificates are in progress, in what order, and what is still to be confirmed.
Evaluation units can be used for connectivity, MDM enrolment and workflow testing outside classified areas.
Tell us the site, zone, gas group and quantity so the right authorised distributor can contact you.
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.
SAMS has not published a price. Any figure you are offered for an uncertified Ex phone should be treated with caution; written indicative pricing is available for a defined 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.
The market guide for Thailand covers Map Ta Phut Industrial Estate, Rayong industrial estates, Sriracha, Chonburi, Laem Chabang, among others. Site-level pages are linked below.
Through authorised distributors once certificates exist. Until then SAMS can send the datasheet and certification schedule and arrange safe-area evaluation units.
Many operators, particularly those with international ownership, work to IEC 60079 and accept IECEx or ATEX paperwork, but this is decided by each site's own safety procedure. Ask for the approved equipment list and supply the certificate and marking details with your request.
Gas processing plants, pipeline stations, LNG receiving terminals, power stations using gas and offshore platforms are typical examples, given that gas fuels about 64% of electricity. Zone classification is site specific, so request the hazardous-area layout drawings.
The sheet describes certification under way with IECEx, the TISI and the NBTC route. None has been issued yet. A buyer should ask for the schedule and check the final certificates against site and regulator requirements before use.
Related guides for Thailand and for Thailand.
Share the site details and quantity. You will get the datasheet and the certification schedule back by email; pricing is indicative only until launch.
Name the site and the operator and we will send what is available before launch.