Czech Republic: logistics and access
State operator MERO finished expanding the Transalpine pipeline at the end of 2024, delivering up to 8 million tonnes of oil a year, with the central oil depot at Nelahozeves as a key storage point.
Czech Republic · Ex-proof
Ex-Proof 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 an Ex-proof 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 topicEx-proof
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.
For the record, no certificate exists for the IS-04Z1 today. The programme is under way ahead of a Q4 2026 launch. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
At a glance · Ex-proof
Checklist: Ex-proof mobile phone for Czech Republic
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Ex marking | Group, category, protection concept, gas group, temperature class | II 2 G Ex ib IIC T4 (target) |
| Gas group | IIA, IIB or IIC matched to the area drawing | IIC (target) |
| Temperature class | T-class below the ignition temperature of the gas | T4, 135 °C (target) |
| 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
Hazardous-area industry in Czech Republic
The main operators, industrial areas and sites that the SAMS Czech Republic market guide covers.
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: industry on the ground
The country has two refineries, both owned by Česká rafinérská, including the Litvínov refinery, so Litvínov and Kralupy are the best-known flammable-liquid processing sites.
Czech Republic: who works there
The Orlen Unipetrol group includes refineries and plants at Litvínov and Kralupy nad Vltavou, Paramo at Pardubice and Kolín, Spolana at Neratovice, and two research centres, and it is the only crude oil processor in the country.
Czech Republic: infrastructure
The Ingolstadt-Kralupy-Litvínov pipeline can bring crude oil from Germany and can be connected to the Transalpine pipeline, so crude arrives through pipeline terminals rather than seaports.
The term · Ex-proof
What “Ex-proof” means for a smartphone
“Ex-proof” is shorthand for equipment carrying an explosion-protection marking (the Ex mark) that matches the area it enters. The marking states the protection concept, gas or dust group and temperature class, and it must be backed by a certificate issued by a recognised body, so a phone described as Ex-proof should come with a certificate number you can check.
The IS-04Z1 is designed to carry the marking II 2 G Ex ib IIC T4. That is a target: certification is in progress, no certificate has been issued, and SAMS will publish the certificate numbers when they exist.
In Czech Republic. A marking check at a Czech plant would read the certificate number, the issuing body and the complete marking string, which will be published so they can be checked. The target is II 2 G Ex ib IIC T4, with Zone 21 dust in the same programme, which matters at a fertiliser or coking site where powder and gas areas are close.
The route · specification
Specifying an Ex-proof 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 an Ex-proof mobile phone in Czech Republic 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 an Ex-proof mobile phone in Czech Republic cost?
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.
What Ex marking will the IS-04Z1 carry?
The marking target is II 2 G Ex ib IIC T4. It becomes a marking only when the certificate is issued; until then it is a design target.
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.
Are Czech refineries covered by ATEX rules for handheld devices?
The Czech Republic is an EU member, so ATEX Directive 2014/34/EU applies to equipment and employers zone workplaces under Directive 1999/92/EC. Refineries such as Litvínov typically also have internal device approval and permit-to-work procedures, so ask the HSE office before bringing phones in.
What language should Czech site documents be in?
Czech is the usual site language, and ATEX user instructions are typically expected in the local language of the destination. A Czech-language instruction sheet with the certificate pack often speeds up acceptance. Ask the operator whether it also accepts English documentation for contractors.
Why does the issuing notified body matter to Czech buyers?
FTZÚ in Ostrava-Radvanice is notified body 1026, and Czech engineers recognise it on an Ex certificate, so buyers often ask which body issued one before anything else. The certificate number, issuing body and marking string will be published for checking. No certificate exists yet, as certification is in progress.
Related guides
Keep exploring
More on Czech Republic, and on other places in Czech Republic.
Explosion-Proof Mobile Phone Supplier in Czech RepublicSame place, different guide
Intrinsically Safe Mobile Phone Supplier in Czech RepublicSame place, different guide
IECEx Mobile Phone in Czech RepublicSame place, different guide
Industrial Mobile Phone Distributor in Czech RepublicSame place, different guide
Rugged Mobile Phone Distributor in Czech RepublicSame place, different guide
Hazardous Area 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
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
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.