Climate
Hot desert climate with high summer temperatures and dust.
Al-Ahsa is the largest governorate in Saudi Arabia by area, with Hofuf as its seat and a 2022 population of about 1.1 million. Al-Ahsa International Airport lies 25 km from the city centre and has flights to Jeddah, Medina and Dubai; highways link the area to Riyadh, Dammam and Abu Dhabi. If you are specifying an explosion proof mobile phone for Al-Ahsa (Hofuf), this page covers the markings, the approvals and the current certification status of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
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.
Status: pre-launch. IECEx, ATEX, UKEX and NEC 500 certification is in progress and no certificate has been issued; launch is planned 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 |
|---|---|---|
| Protection concept | Flameproof (Ex d) or intrinsic safety (Ex i) | Intrinsic safety, level ib |
| Zone suitability | Zone 1 gas and Zone 21 dust | Design target for Zone 1 and 21 |
| Certificate | Number, issuing body and schedule of conditions | In progress; not issued |
| Where it applies | Al-Ahsa (Hofuf): Oil wellsites and gathering, Associated gas handling, Water injection facilities | Classified by the site operator |

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.
Who operates there and which kinds of classified area a handset would meet, from the SAMS site research.
Hot desert climate with high summer temperatures and dust.
Hofuf is served by an airport, rail station and highways to Riyadh and Dammam.
Operators are reported to inject seawater into Ghawar at around 7 million barrels a day, in use since 1965, which means long water-injection pipelines and pumping plants.
Saudi Arabia's Communications, Space and Technology Commission issues radio type-approval certificates, renewed every two years, and accepts European test documents for handsets.
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.
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.
“Explosion proof” is the phrase most buyers use for equipment that may be taken into a classified hazardous area. Strictly, it covers several protection concepts: a flameproof enclosure (Ex d) contains an internal explosion, while intrinsic safety (Ex i) limits electrical energy so that an ignition cannot start. Phones are normally intrinsically safe, because a flameproof handset would be too heavy to carry all shift.
The IS-04Z1 uses intrinsic safety, with a marking target of Ex ib IIC T4, and is designed for Zone 1 and Zone 21. It is pre-launch, certification is in progress and no certificate has been issued.
In Al-Ahsa (Hofuf). Out at wellsites, gathering lines and pump stations, explosion-proof usually means flameproof Ex d equipment for fixed installations. A handheld phone used by a field operator would more often rely on intrinsic safety. The IS-04Z1 is designed for intrinsic safety, so specifiers should state which concept each Al Ahsa task needs.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
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.
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.
It is intrinsically safe (marking target Ex ib IIC T4), which is the usual way to make a phone for hazardous areas. It is not a flameproof (Ex d) design, and certification is still in progress.
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.
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.
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.
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.
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.
More on Al Ahsa, and on other places in Saudi Arabia.
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Name the site and the operator and we will send what is available before launch.