Industry mix
Factories produce machinery, chemicals, construction materials, food and other goods, so hazard profiles differ by plant.
Riyadh · Ex-proof
Ex-Proof Smartphone in Riyadh
The city had around 7 million residents in 2022, the largest population in Saudi Arabia, so contractors, service companies and specialist suppliers are concentrated here. Aramco's Riyadh Refinery and manufacturing plants create Zone 1 and Zone 21 areas, but most hydrocarbon sites are in the Eastern Province. If you are specifying an Ex-proof smartphone for Riyadh, this page covers the markings, the approvals and the current certification status of the IS-04Z1.
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
WhereRiyadh
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Riyadh: 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. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
At a glance · Ex-proof
Checklist: Ex-proof smartphone for Riyadh
| 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 | Riyadh: Refinery process units, Chemical and manufacturing plants, Industrial plant dust areas (Zone 21) | Classified by the site operator |
Product · Riyadh
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 Riyadh. 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 · Riyadh
Riyadh: where the IS-04Z1 would work
Who operates there and which kinds of classified area a handset would meet, from the SAMS site research.
Operators and companies on site
- Saudi Aramco (Riyadh Refinery)
Classified areas to expect
- Refinery process units
- Chemical and manufacturing plants
- Industrial plant dust areas (Zone 21)
Local conditions · Riyadh
Site conditions at Riyadh: what wears and what limits equipment
Corporate centre
Twenty-three of the 24 ministries and firms such as SABIC and STC are headquartered here, so many buyers and contractors are based in Riyadh even when classified areas are elsewhere.
Field notes · Riyadh
More about Riyadh that matters for portable equipment
Riyadh: climate and equipment wear
Dust storms occur in Riyadh and can cut visibility to under 10 m, so filters, port covers and sealed enclosures matter for handheld equipment.
Riyadh: logistics and access
King Khalid International Airport lies about 35 km north of the city centre and is the main hub for visitors, which sets the transfer time to inland industrial areas.
Riyadh: who works there
The industrial cities authority MODON, set up in 2001 and headquartered in Riyadh, oversees 42 industrial cities and over 7,700 productive factories across the Kingdom.
Riyadh: geography and layout
Riyadh sits on the eastern Najd plateau beside Wadi Hanifa at an average elevation of about 600 m, so it is inland, with no sea-air corrosion unlike the coastal industrial cities.
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 Riyadh. Aramco's Riyadh Refinery points to Zone 1 gas areas, and manufacturing plants add Zone 21 dust areas. A marking check should first ask gas or dust, then read the group and temperature class from the plant's classification. The IS-04Z1 target marking II 2 G Ex ib IIC T4 refers to gas only.
The route · specification
Specifying an Ex-proof smartphone for Riyadh
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 · Riyadh
Frequently asked questions
Can we buy an Ex-proof smartphone in Riyadh 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 Riyadh cost?
There is no list price yet. SAMS gives indicative pre-launch pricing in writing, against a stated quantity and site, and does not commit to a lead time before certification completes.
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 Riyadh would use it?
Likely candidates are refinery process units, chemical and manufacturing plants, industrial plant dust areas (zone 21). 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.
Does the Riyadh climate stress phones at low temperature?
Rarely, but winters are cooler than many expect, with a January average low around 7 C. The bigger issue is summer heat. Check the datasheet operating range and avoid leaving devices in vehicles; the plant operator may set its own limits.
Does dust in Riyadh matter for phone selection?
Yes. Dust storms can cut visibility to under 10 m, so a sealed device with a stated ingress protection rating and good port covers is sensible. Dust ingress and combustible dust in a plant are different issues; follow the operator's dust-zone classification for hazardous areas.
Are Riyadh buyers mostly purchasing for Riyadh sites?
Not necessarily. Many buyers and contractors are based in Riyadh even when the classified areas are elsewhere, because most hydrocarbon sites are in the Eastern Province. Ask where the device will be used, and check the classification for that site, not for the city of purchase.
Related guides
Keep exploring
Related guides for Riyadh and for Saudi Arabia.
Explosion-Proof Mobile Phone in RiyadhSame place, different guide
ATEX and IECEx Mobile Phone in RiyadhSame place, different guide
Rugged Mobile Phone Distributor in RiyadhSame place, different guide
Industrial Mobile Phone Distributor in RiyadhSame place, different guide
Hazardous Area Mobile Phone Distributor in RiyadhSame place, different guide
Intrinsically Safe Mobile Phone in RiyadhSame place, different guide
ATEX and IECEx Mobile Phone Distributor in JubailElsewhere in Saudi Arabia
ATEX and IECEx Mobile Phone Distributor in Al AhsaElsewhere in Saudi Arabia
ATEX and IECEx Mobile Phone Distributor in AbqaiqElsewhere in Saudi Arabia
ATEX and IECEx Mobile Phone Distributor in DhahranElsewhere in Saudi Arabia
Saudi Arabia market guideCertification route and regulators
All guides for Saudi ArabiaEvery route we cover
Certification statusWhat is in progress
Enquiry · Riyadh
Ask about the IS-04Z1 for Riyadh, 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.
Enquiry · Riyadh
Launching Q4 2026
Planning for Riyadh?
Send the zone and gas group of your site and we will reply with the datasheet and schedule.