Regional market
The port is positioned to serve the Cardiff Capital Region, about 1.5 million people or roughly half of Wales.
Cardiff · Ex-proof
Ex-Proof Smartphone in Cardiff
Cardiff has a maritime climate with an average annual temperature of about 11 degrees Celsius and about 1,200 mm of rain on 153 days a year, with more than 100 mm a month from October to January. Zone 1 work arises at fuel handling and storage, while Wales' refining is at Pembroke rather than Cardiff. This page explains what to look for in an Ex-proof smartphone for Cardiff and Roath Dock, 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
DeviceSmartphone
RouteSpecification
WhereCardiff
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Cardiff and Roath Dock: 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 · Ex-proof
Checklist: Ex-proof smartphone for Cardiff and Roath Dock
| 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 | Cardiff and Roath Dock: Fuel storage and distribution terminal, Marine jetty and tanker discharge, Road tanker loading | Classified by the site operator |
Product · Cardiff
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 Cardiff. 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 site · Cardiff and Roath Dock
Cardiff and Roath Dock at a glance: who is there, what is classified
A short profile of the site and the kinds of classified area that matter for portable equipment.
Operators and companies on site
- Valero
- Associated British Ports
Classified areas to expect
- Fuel storage and distribution terminal
- Marine jetty and tanker discharge
- Road tanker loading
Local conditions · Cardiff and Roath Dock
Conditions in Cardiff and Roath Dock that affect handheld equipment
Fuel terminal
Valero imports petrol, ultra low sulphur diesel, biofuels and heating fuels through Cardiff for distribution to the south Wales market.
Field notes · Cardiff and Roath Dock
More about Cardiff and Roath Dock that matters for portable equipment
Cardiff and Roath Dock: industry on the ground
The East Moors Steelworks closed in 1978, and Cardiff Bay was later regenerated under a development corporation, so the city's economy is now centred on commerce, media and public administration rather than heavy industry.
Cardiff and Roath Dock: background
Cardiff became the main port for coal exports from the Cynon, Rhondda and Rhymney valleys after the Marquess of Bute built a dock in the 1830s linked to the Taff Vale Railway.
Cardiff and Roath Dock: geography and layout
Cardiff is the capital of Wales, with 381,516 residents in 2025, and sits in the Cardiff Capital Region of 1.5 million people, roughly half the nation's population.
Cardiff and Roath Dock: people and language
In 2021 about 12.2 percent of residents aged three and over could speak Welsh, double the 1991 share, so bilingual signage and Welsh-language materials are common in public and some workplace settings.
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 Cardiff and Roath Dock. A marking check at Roath Dock would compare the employer's zone map with the equipment label, covering zone, gas group and temperature class for petrol, ultra low sulphur diesel and heating fuels. Fuel vapour is normally in a lower gas group than hydrogen, so IIC marking is conservative. The IS-04Z1 target is II 2 G Ex ib IIC T4, pending certification.
The route · specification
Specifying an Ex-proof smartphone for Cardiff
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 · Cardiff
Frequently asked questions
Can we buy an Ex-proof smartphone in Cardiff today?
No. Nothing can be bought or taken into a classified area today: certification is in progress and launch is planned for Q4 2026. What is available now is the datasheet, the written certification schedule and evaluation units for safe-area use.
What does an Ex-proof smartphone in Cardiff 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 areas at Cardiff and Roath Dock would use it?
Likely candidates are fuel storage and distribution terminal, marine jetty and tanker discharge, road tanker loading. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
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.
How does Cardiff's weather affect handheld devices outdoors?
The maritime climate is mild but wet, with rain on about 153 days a year and persistent wind from the Bristol Channel. Typically users want good water ingress protection and routine drying and cleaning of connectors, and should check the device rating against the site.
Is Cardiff a heavy-industry location for hazardous-area equipment?
Not mainly. The city is Wales's commercial and administrative centre, and the old steelworks closed in 1978, though the wider Severn Estuary and South Wales coast host fuel, energy and processing sites. Confirm the operator and site classification for the actual place you will work.
Who decides what equipment is allowed at Cardiff's fuel terminal?
Under DSEAR, the employer assesses hazardous zones and chooses suitable equipment, so the terminal operator and its safety adviser decide. Valero occupies the terminal and Associated British Ports runs the dock. Confirm requirements with the site operator before specifying any handheld device.
Related guides
Keep exploring
More on Cardiff, and on other places in United Kingdom.
Rugged Mobile Phone in CardiffSame place, different guide
Hazardous Area Mobile Phone in CardiffSame place, different guide
Explosion-Proof Mobile Phone Distributor in CardiffSame place, different guide
Intrinsically Safe Mobile Phone in CardiffSame place, different guide
ATEX and IECEx Mobile Phone in CardiffSame place, different guide
IECEx Mobile Phone in CardiffSame place, different guide
ATEX and IECEx Mobile Phone Distributor in LondonElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in ScotlandElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in Northern IrelandElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in LiverpoolElsewhere in United Kingdom
United Kingdom market guideCertification route and regulators
All guides for United KingdomEvery route we cover
Certification statusWhat is in progress
Enquiry · Cardiff and Roath Dock
Ask about the IS-04Z1 for Cardiff and Roath Dock, United Kingdom
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Enquiry · Cardiff and Roath Dock
Launching Q4 2026
Planning for Cardiff?
Send the zone and gas group of your site and we will reply with the datasheet and schedule.