Climate
Hot desert climate, though about 3 C cooler on average than Riyadh because of the altitude.
Najran is a fast-growing city in south-west Saudi Arabia, near the Yemen border, at about 1,300 m elevation. Factories in the region cover food processing, chemicals, plastics, paper and non-metallic minerals, so hazards range from solvents to combustible dusts. This page explains what to look for in a hazardous area smartphone for Najran, and where the IS-04Z1 stands against that list today.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Najran: 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 |
|---|---|---|
| Zone | 0, 1 or 2 for gas; 20, 21 or 22 for dust | Designed for Zone 1 and Zone 21 |
| Gas group | IIA, IIB or IIC | IIC (target) |
| Area drawing | The operator's own classification drawing | Decided by the site operator |
| Where it applies | Najran: Chemical and plastics manufacturing, Mining and quarrying operations, Stone and industrial dust areas (Zone 21) | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Najran. 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, though about 3 C cooler on average than Riyadh because of the altitude.
Najran Industrial City covers 6.5 million square metres, about 45 km north-east of Najran city.
Copper and zinc reserve zones covering another 70 square km are identified near Najran, pointing to possible future mining and processing work.
Saudi Arabia's Communications, Space and Technology Commission issues radio type approval, renewed every two years, and accepts European test documents for handsets.
The city lies in the fertile Wadi Najran, a valley that has long been a crossroads of caravan routes, so industrial work sits close to farmland and water sources.
Marble and granite processing is a growing sector, supported by local gold, copper, iron and ornamental stone deposits, so quarrying and stone-cutting dust is part of the working environment.
A hazardous area is a place where flammable gas, vapour or combustible dust may be present. Standards divide these into zones: Zones 0, 1 and 2 for gas and vapour, and Zones 20, 21 and 22 for dust. Zone 1 and Zone 21 are the tier where an explosive atmosphere is likely to occur in normal operation, which is where the IS-04Z1 is designed to work. Anything carried in must be marked for the zone, gas group and temperature class of the area.
No certificate has been issued for the IS-04Z1 yet, so it must not be taken into a classified area until the certificate covering it exists and the site operator has accepted it.
In Najran. Classified areas in Najran are smaller in scale than in the Eastern Province. They include chemical and plastics manufacturing, mining and quarrying operations and industrial dust areas. Individual factories and mines classify their own areas, not SAMS. Ask each site for its drawings.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
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.
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.
Zone 1 and Zone 21 (gas and dust) with gas group IIC and temperature class T4, subject to certification. It must not be used in a classified area before its certificate is issued and the site has accepted it.
Likely candidates are chemical and plastics manufacturing, mining and quarrying operations, stone and industrial dust areas (zone 21). 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.
Smaller than in the Eastern Province. The area has factories making chemicals, plastics, paper and food products, plus quarrying and mining, so classified areas exist but are mainly in individual plants. Each factory or mine sets its own approval rules.
The city is about 1,200 to 1,300 m above sea level and is a little cooler than Riyadh, but still hot desert. Handsets still need heat tolerance, and long supply lines mean spare batteries and chargers should be carried.
The target marking, II 2 G Ex ib IIC T4, refers to gas atmospheres. Dust areas such as Zone 21 call for dust-related protection, which is a different marking. Certification is still in progress, so do not assume dust suitability. Ask the supplier directly and confirm with the factory's safety officer.
More on Najran, and on other places in Saudi Arabia.
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
Send the zone and gas group of your site and we will reply with the datasheet and schedule.