Logistics
Hofuf is served by an airport, rail station and highways to Riyadh and Dammam.
Al Ahsa · Ex-proof
Ex-Proof Mobile Phone in Al Ahsa
Saudi Arabia's Communications, Space and Technology Commission issues radio type-approval certificates, renewed every two years, and accepts European test documents for handsets. The Ghawar oil field, the world's largest conventional field, lies within it and is operated by Aramco, creating Zone 1 areas at wells and gas handling facilities. This page explains what to look for in an Ex-proof mobile phone for Al-Ahsa (Hofuf), 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
WhereAl Ahsa
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Al-Ahsa (Hofuf): 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. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
At a glance · Ex-proof
Checklist: Ex-proof mobile phone for Al-Ahsa (Hofuf)
| 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 | Al-Ahsa (Hofuf): Oil wellsites and gathering, Associated gas handling, Water injection facilities | Classified by the site operator |
Product · Al Ahsa
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 Al Ahsa. 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 · Al-Ahsa (Hofuf)
Al-Ahsa (Hofuf) 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
- Saudi Aramco
Classified areas to expect
- Oil wellsites and gathering
- Associated gas handling
- Water injection facilities
- Pipeline pump stations
Local conditions · Al-Ahsa (Hofuf)
Site conditions at Al-Ahsa (Hofuf): what wears and what limits equipment
Field scale
Ghawar measures about 280 by 30 km and is divided into zones including Ain Dar and Shedgum, Uthmaniyah, Hawiyah and Haradh, so sites are widely spread.
Field notes · Al-Ahsa (Hofuf)
More about Al-Ahsa (Hofuf) that matters for portable equipment
Al-Ahsa (Hofuf): background
Ghawar was discovered in 1948 and put on stream in 1951; it is entirely owned and operated by Saudi Aramco, so one operator's rules cover the oil-field work.
Al-Ahsa (Hofuf): who works there
Aramco's 2019 bond prospectus put Ghawar's maximum output at 3.8 million barrels a day, well below the older market estimate of more than 5 million.
Al-Ahsa (Hofuf): geography and layout
The governorate has fertile land and abundant water, and has historically been a trade crossroads linking Arabia with Persia and India.
Al-Ahsa (Hofuf): geography and layout
Ghawar's reservoir is a limestone about 85 m thick, lying roughly 1,800 to 2,100 m below ground, so wells and surface facilities handle high-pressure oil and associated gas.
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 Al-Ahsa (Hofuf). Associated gas handling and wellsites suggest Zone 1 gas areas, so a marking check reads the zone, gas group and temperature class from the operator's classification. Fuels and gas are often in the lower groups, but the operator decides. The IS-04Z1 target marking is II 2 G Ex ib IIC T4.
The route · specification
Specifying an Ex-proof mobile phone for Al Ahsa
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 · Al Ahsa
Frequently asked questions
Can we buy an Ex-proof mobile phone in Al Ahsa 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 mobile phone in Al Ahsa 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.
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 Al-Ahsa (Hofuf) would use it?
Likely candidates are oil wellsites and gathering, associated gas handling, water injection facilities, pipeline pump stations. 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.
What flights serve Al-Ahsa for visiting engineers?
Al-Ahsa International Airport is about 25 km from the city centre and has scheduled flights to Jeddah, Medina and Dubai. Many visitors instead fly to Dammam or Riyadh and drive, so check current schedules and the client's transport arrangements.
Does water injection at Ghawar create hazardous areas?
Water injection itself is mainly a pumping and piping activity, but it supports oil production, so nearby wellheads, separators and gas handling can be classified. The classification is set site by site by the operator; ask for the area classification drawings before specifying handheld devices.
Is the Al Ahsa climate a battery concern?
Hot desert conditions with high summer temperatures and dust are normal here. Batteries and electronics have temperature limits, so check the datasheet range against expected conditions, and avoid leaving a handset in a hot vehicle. IP68 helps against dust, but it does not address heat or ignition risk.
Related guides
Keep exploring
Related guides for Al Ahsa and for Saudi Arabia.
ATEX and IECEx Mobile Phone in Al AhsaSame place, different guide
IECEx Mobile Phone in Al AhsaSame place, different guide
Explosion-Proof Mobile Phone Distributor in Al AhsaSame place, different guide
Rugged Mobile Phone Distributor in Al AhsaSame place, different guide
Intrinsically Safe Mobile Phone Distributor in Al AhsaSame place, different guide
Industrial Mobile Phone in Al AhsaSame place, different guide
ATEX and IECEx Mobile Phone Distributor in AbqaiqElsewhere in Saudi Arabia
ATEX and IECEx Mobile Phone Distributor in NajranElsewhere in Saudi Arabia
ATEX and IECEx Mobile Phone Distributor in Ras TanuraElsewhere in Saudi Arabia
ATEX and IECEx Mobile Phone Distributor in YanbuElsewhere in Saudi Arabia
Saudi Arabia market guideCertification route and regulators
All guides for Saudi ArabiaEvery route we cover
Certification statusWhat is in progress
Enquiry · Al-Ahsa (Hofuf)
Ask about the IS-04Z1 for Al-Ahsa (Hofuf), Saudi Arabia
Share the site details and quantity. You will get the datasheet and the certification schedule back by email; pricing is indicative only until launch.
Enquiry · Al-Ahsa (Hofuf)
Launching Q4 2026
Planning for Al Ahsa?
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.