Czech Republic: infrastructure
The Gazela pipeline connects Czech gas supply through Germany at Brandov or Rozvadov and through Slovakia at Lanžhot, so compressor and metering stations sit near the borders.
Czech Republic · hazardous area
Hazardous Area Mobile Phone in Czech Republic
The IS-04Z1 is an intrinsically safe Android handset designed for Zone 1 and Zone 21, built for Czech refineries, chemical plants, tank farms and coke ovens rather than for a catalogue. This page explains what to look for in a hazardous area mobile phone for Czech Republic, 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
WhereCzech Republic
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Czech Republic: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Where things stand: the IS-04Z1 has not launched, and none of its four certification routes has produced a certificate yet. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
At a glance · hazardous area
Checklist: hazardous area mobile phone for Czech Republic
| 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 | Czech Republic: Litvínov and Záluží, Kralupy nad Vltavou, Neratovice | Classified by the site operator |
Product · Czech Republic
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 Czech Republic. 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 · Czech Republic
Where an Ex phone is used in Czech Republic
Operators and classified areas drawn from the SAMS Czech Republic market guide.
Operators, EPCs and contractors
- Orlen Unipetrol
- Litvínov and Kralupy refineries and the Záluží petrochemical complex.
- Spolana
- PVC production at Neratovice.
- Synthos Kralupy
- Styrene and synthetic rubber production beside the Kralupy refinery.
- Deza
- Coal tar and crude benzol processing at Valašské Meziříčí.
- Paramo
- Bitumen and lubricant production at Pardubice.
- Lovochemie
- Nitrogen fertiliser production at Lovosice on the Elbe.
Industrial areas and sites
- Litvínov and Záluží
- Refinery, steam cracker and downstream polymer plants.
- Kralupy nad Vltavou
- Conversion refinery with a fluid catalytic cracker.
- Neratovice
- Chlor-alkali and PVC chemistry on the Elbe.
- Valašské Meziříčí
- Tar and benzol processing in the Zlín region.
- Pardubice
- Refining by-products, bitumen and lubricant blending.
- Lovosice
- Fertiliser production and river and rail loading.
Field notes · Czech Republic
More about Czech Republic that matters for portable equipment
Czech Republic: infrastructure
In 2022 electricity production was 78.8 TWh, of which 53.6% came from fossil fuels, mostly lignite, and 40.95% from nuclear, so coal-handling plants and power stations are typical dust and gas sites.
Czech Republic: rules and approvals
ATEX equipment is split into Group I for mining and Group II for surface industries, which matters in a country with coal mining as well as refining and chemicals.
Czech Republic: industry on the ground
Gas use was 9.4 billion cubic metres in 2021 and 7.1 billion in 2023, so gas distribution and industrial gas burners remain widespread across Czech industry.
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 Czech Republic. Czech classified areas are concentrated and well mapped: Litvínov and Záluží, Kralupy nad Vltavou, Neratovice, Lovosice, Pardubice, tank farms at Nelahozeves, coking plants at Ostrava and Třinec, and gas storage in South Moravia. Operators classify these areas, not SAMS, and vapour and powder areas often sit a few steps apart.
The route · specification
Specifying a hazardous area mobile phone for Czech Republic
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 · Czech Republic
Frequently asked questions
Can we buy a hazardous area mobile phone in Czech Republic today?
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.
What does a hazardous area mobile phone in Czech Republic cost?
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.
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 Czech Republic does this cover?
The market guide for Czech Republic covers Litvínov and Záluží, Kralupy nad Vltavou, Neratovice, Valašské Meziříčí, 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 Czech mines need different Ex equipment from refineries?
Yes. ATEX separates Group I equipment for mining from Group II for surface industries, and methane and coal dust conditions underground differ from refinery gas and vapour. Check the Group marking on any device against the area and the mine operator's own approval process.
How do pipeline terminals in the Czech Republic affect device planning?
Crude arrives by pipeline from Germany and Italy, with storage at depots such as Nelahozeves, so many classified areas are at pumping and storage sites rather than ports. Terminal operators run their own induction and device registration, so schedule approvals early for shutdown work.
Must the instructions be in Czech?
Czech law expects the instructions in Czech, so the manual, safe-use guidance and declaration of conformity are planned in Czech alongside English, with a Czech interface on Android 16. That is planned into the launch rather than translated afterwards. Certification is in progress. Check requirements with your safety officer.
Related guides
Keep exploring
More on Czech Republic, and on other places in Czech Republic.
Intrinsically Safe Mobile Phone Supplier in Czech RepublicSame place, different guide
Industrial Mobile Phone Supplier in Czech RepublicSame place, different guide
Rugged Mobile Phone Supplier in Czech RepublicSame place, different guide
IECEx Mobile Phone in Czech RepublicSame place, different guide
Explosion-Proof Mobile Phone Distributor in Czech RepublicSame place, different guide
Ex-Proof Mobile Phone Supplier in Czech RepublicSame place, different guide
Czech Republic market guideCertification route and regulators
All guides for Czech RepublicEvery route we cover
Certification statusWhat is in progress
Enquiry · Czech Republic
Ask about the IS-04Z1 for Czech Republic
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Enquiry · Czech Republic
Launching Q4 2026
Planning for Czech Republic?
Send the zone and gas group of your site and we will reply with the datasheet and schedule.