Hungary: rules and approvals
Under ATEX, Category 3 equipment may be self-certified by the manufacturer with a technical dossier, while Category 1 and 2 usually involve a notified body, which affects what Hungarian buyers should ask for.
The IS-04Z1 is an intrinsically safe Android handset designed for Zone 1 and Zone 21, built for Hungarian refinery units, polymer plants, pharmaceutical solvent areas and gas installations. This page explains what to look for in an intrinsically safe mobile phone for Hungary, and where the IS-04Z1 stands against that list today.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Hungary: 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.
| 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 | Hungary: Százhalombatta, Tiszaújváros, Kazincbarcika | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Hungary. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
The main operators, industrial areas and sites that the SAMS Hungary market guide covers.
Under ATEX, Category 3 equipment may be self-certified by the manufacturer with a technical dossier, while Category 1 and 2 usually involve a notified body, which affects what Hungarian buyers should ask for.
The Arad-Szeged natural gas pipeline connects Romania and Hungary, so border compressor and metering stations belong to the national gas network.
Wanhua-BorsodChem, based at Kazincbarcika in north-east Hungary, produces isocyanates (MDI and TDI), PVC and chlor-alkali products, and is a major chemical employer for plant maintenance and shutdown contractors.
MOL was established on 1 October 1991 as the legal successor of nine members of the National Oil and Gas Trust, which dated from 1957, giving Hungary a long industrial oil and gas history.
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 Hungary. Rounds at Hungarian refineries, crackers and gas compressor stations cover many zones in one shift. In pharmaceutical plants, solvent rooms may be entered many times a day. An intrinsically safe handheld lets staff record readings and checks at the point of work. That is the design intent, pending certification.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Not yet. The IS-04Z1 is pre-launch and its certification is still in progress ahead of a Q4 2026 launch. No unit goes into a classified area before the certificate covering it exists. The datasheet, the certification schedule and safe-area evaluation units are available now.
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 Hungary covers Százhalombatta, Tiszaújváros, Kazincbarcika, Dorog, among others. Site-level pages are linked below.
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.
Hungarian is the working language, and ATEX instructions are typically expected in the language of the destination country. Providing Hungarian instructions with the certificate pack often helps, though international operators may also accept English. Check with the site safety office.
Hungary is an EU member, so ATEX Directive 2014/34/EU applies to equipment and Directive 1999/92/EC to workplace zoning. Zone 1 and Zone 2 devices should carry CE and Ex markings with instructions in the local language. Operators usually add their own permit and registration rules.
ATEX is the usual reference in the EU, and Hungary applies it through national law. Some operators or international contractors also ask for IECEx. Ask the operator's HSE or explosion-protection lead which evidence they accept before ordering.
Related guides for Hungary and for Hungary.
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
Send the zone and gas group of your site and we will reply with the datasheet and schedule.