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.
Thailand · hazardous area
Hazardous Area Mobile Phone in Thailand
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. This page explains what to look for in a hazardous area mobile phone for Thailand, 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 topichazardous area
DeviceMobile Phone
RouteSpecification
WhereThailand
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Thailand: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
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.
At a glance · hazardous area
Checklist: hazardous area mobile phone for Thailand
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Zone | 0, 1 or 2 for gas; 20, 21 or 22 for dust | Designed for Zone 1 and Zone 21 |
| Gas group | IIA, IIB or IIC | IIC (target) |
| Area drawing | The operator's own classification drawing | Decided by the site operator |
| Where it applies | Thailand: Map Ta Phut Industrial Estate, Rayong industrial estates, Sriracha, Chonburi | Classified by the site operator |
Product · Thailand
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 Thailand. 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 market · Thailand
Where this applies in Thailand
The classified areas, operators and sites below are the ones covered in the SAMS Thailand market guide.
Operators, EPCs and contractors
- PTT Global Chemical
- Olefins, aromatics and derivatives across the Map Ta Phut complex
- SCG Chemicals
- Crackers, polyolefin and downstream plants at Map Ta Phut
- IRPC
- Integrated refinery and petrochemical complex at Rayong
- Star Petroleum Refining
- Refinery and jetty operations at Map Ta Phut
- Thai Oil
- The refinery and downstream units at Sriracha, Chonburi
- ExxonMobil
- Refinery and chemical operations at Sriracha
Industrial areas and sites
- Map Ta Phut Industrial Estate
- The IEAT petrochemical estate: crackers, derivatives and the deep sea port
- Rayong industrial estates
- Asia, RIL, Hemaraj and the neighbouring estates around Map Ta Phut
- Sriracha, Chonburi
- Two refineries, lube plants and the associated tank farms
- Laem Chabang
- The container and bulk port, chemical berths and the industrial estate behind it
- Chachoengsao
- EEC industrial estates and the plants along the Bang Pakong corridor
- Gulf of Thailand
- Offshore production platforms, wellhead platforms and the supply bases
Field notes · Thailand
More about Thailand that matters for portable equipment
Thailand: industry on the ground
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.
Thailand: geography and layout
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.
Thailand: projects and investment
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.
The term · hazardous area
What “hazardous area” means for a smartphone
A hazardous area is a place where flammable gas, vapour or combustible dust may be present. Standards divide these into zones: Zones 0, 1 and 2 for gas and vapour, and Zones 20, 21 and 22 for dust. Zone 1 and Zone 21 are the tier where an explosive atmosphere is likely to occur in normal operation, which is where the IS-04Z1 is designed to work. Anything carried in must be marked for the zone, gas group and temperature class of the area.
No certificate has been issued for the IS-04Z1 yet, so it must not be taken into a classified area until the certificate covering it exists and the site operator has accepted it.
In Thailand. Thai classified areas cluster in one corridor: Map Ta Phut Industrial Estate, the Rayong estates, Sriracha in Chonburi and the wider EEC, with offshore platforms in the Gulf and older plants along the Chao Phraya. The operator classifies each area. SAMS does not classify any area.
The route · specification
Specifying a hazardous area mobile phone for Thailand
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 · Thailand
Frequently asked questions
Can we buy a hazardous area mobile phone in Thailand 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 a hazardous area mobile phone in Thailand cost?
There is no list price yet. SAMS gives indicative pre-launch pricing in writing, against a stated quantity and site, and does not commit to a lead time before certification completes.
Which hazardous areas is the IS-04Z1 designed for?
Zone 1 and Zone 21 (gas and dust) with gas group IIC and temperature class T4, subject to certification. It must not be used in a classified area before its certificate is issued and the site has accepted it.
Which sites in Thailand does this cover?
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.
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.
Do Thai plants usually accept IECEx or ATEX certified devices?
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.
What gas-related facilities in Thailand typically need Zone 1 devices?
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.
What approvals are involved for use in Thailand?
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
Keep exploring
More on Thailand, and on other places in Thailand.
ATEX and IECEx Mobile Phone in ThailandSame place, different guide
Industrial Mobile Phone in ThailandSame place, different guide
Explosion-Proof Mobile Phone Supplier in ThailandSame place, different guide
Ex-Proof Mobile Phone Distributor in ThailandSame place, different guide
Rugged Mobile Phone Distributor in ThailandSame place, different guide
Intrinsically Safe Mobile Phone Supplier in ThailandSame place, different guide
Thailand market guideCertification route and regulators
All guides for ThailandEvery route we cover
Certification statusWhat is in progress
Enquiry · Thailand
Ask about the IS-04Z1 for Thailand
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Enquiry · Thailand
Launching Q4 2026
Planning for Thailand?
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.