Established industrial city
Al Rusayl Industrial City dates from 1983 and preceded the creation of Madayn in 1993, the body that now manages Oman's industrial cities.
Muscat is Oman's capital. Sultan Qaboos Street is the main artery running west to east, with roads to Nizwa and Al Amrat connecting through Rusail and Ruwi. This page explains what to look for in a hazardous area mobile phone for Muscat, 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 Muscat: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
For the record, no certificate exists for the IS-04Z1 today. The programme is under way ahead of a Q4 2026 launch. A buyer's engineering review is separate from the certificate. 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 | Muscat: Refinery process units, Crude export and fuel storage, Industrial city factories using solvents or gases | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Muscat. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
The companies on site and the hazardous-area types a handset is likely to meet there.
Al Rusayl Industrial City dates from 1983 and preceded the creation of Madayn in 1993, the body that now manages Oman's industrial cities.
Crude oil and refinery products are loaded onto tankers off Mina Al Fahal by subsea pipeline and single buoy moorings.
Mina Al Fahal is one of Muscat's coastal districts, alongside Darsait, Ras Al Hamar, Al Qurum Heights, Al Khuwair and Al Seeb.
The Central Hajar Mountains run along the northern coastline, and the deep coast forms two natural harbours at Muttrah and Muscat.
The city has a hot arid climate with about 10 centimetres of rain a year, falling mostly from December to April.
The Muscat Governorate had a population of 1.72 million in 2022, and the metropolitan area spans about 6,500 square kilometres, making it Oman's main hub for contractors and head offices.
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 Muscat. Muscat's classified areas include refinery process units, crude export and fuel storage, and industrial-city factories using solvents or gases. The operator or occupier classifies them, not SAMS. Al Rusayl lies about 20 km outside the city, and Madayn manages the estate, so ask each occupier for its own drawings.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Not yet. The IS-04Z1 is pre-launch and its certification is still in progress ahead of a Q4 2026 launch. No unit goes into a classified area before the certificate covering it exists. The datasheet, the certification schedule and safe-area evaluation units are available now.
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 refinery process units, crude export and fuel storage, industrial city factories using solvents or gases. 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.
Muscat is hot and arid, with most rain between December and April, and tropical cyclones such as Gonu in 2007 and Phet in 2010 have affected the coast in June. Plan for heat and storm disruption.
Yes. Oman's TRA type approval is required for telecom equipment, valid for four years, with a local representative and compliance mark. Confirm the current rules for each model with your supplier.
Summers are hot and humid along the coast, which affects outdoor equipment and battery life. Check the certified ambient range, avoid direct sun on parked devices and charge only in a safe area. Ask the operator for its device handling rules.
More on Muscat, and on other places in Oman.
Share the site details and quantity. You will get the datasheet and the certification schedule back by email; pricing is indicative only until launch.
Name the site and the operator and we will send what is available before launch.