United States: rules and approvals
Full certification in the US includes quarterly factory inspections, while field certification offers an alternative for custom or low-volume equipment already at an installation.
United States · industrial
Industrial Cell Phone in United States
The IS-04Z1 is built for people who work inside classified locations at American refineries, gas plants, terminals and wellsites, and for the HSE and IT teams who decide what goes through the gate. This page explains what to look for in an industrial cell phone for United States, 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 topicindustrial
DeviceCell Phone
RouteSpecification
WhereUnited States
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for United States: 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.
At a glance · industrial
Checklist: industrial cell phone for United States
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Ingress protection | IP rating for dust and water | IP68 design |
| Fleet management | EMM and MDM support | Android 16 with EMM and MDM |
| Explosion protection | A separate certificate and marking | In progress; not issued |
| Where it applies | United States: Permian Basin, Houston Ship Channel, Beaumont and Port Arthur | Classified by the site operator |
Product · United States
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 United States. 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 market · United States
Hazardous-area industry in United States
The main operators, industrial areas and sites that the SAMS United States market guide covers.
Operators, EPCs and contractors
- ExxonMobil
- Baytown and Beaumont complexes, Permian acreage
- Chevron
- Permian operations, Pascagoula refinery, Anchor deepwater
- Shell USA
- Mars and Ursa hubs, Vito and Whale platforms
- bp America
- Thunder Horse, Whiting refinery, Kaskida development
- ConocoPhillips
- Permian and Eagle Ford, Alaska North Slope
- Marathon Petroleum
- Galveston Bay and Garyville refineries, MPLX midstream
Industrial areas and sites
- Permian Basin
- Midland and Delaware sub-basins, the largest US oil region
- Houston Ship Channel
- Baytown, Deer Park and Pasadena refining and chemicals
- Beaumont and Port Arthur
- Motiva, ExxonMobil and Valero refining on the Sabine
- Lake Charles and Calcasieu
- Refining, chemicals and LNG export in Louisiana
- Baton Rouge corridor
- Refining and chemical plants toward Plaquemine
- Corpus Christi
- Refining, crude export docks and LNG trains
Field notes · United States
More about United States that matters for portable equipment
United States: rules and approvals
The National Electrical Code covers hazardous locations in Article 500 for the Class and Division system and in Articles 505 and 506 for the Zone system, as adopted by each state or authority.
United States: rules and approvals
The FCC regulates radio frequency devices between 9 kHz and 3000 GHz, and most radio-containing products must follow an equipment authorisation procedure before being marketed.
United States: rules and approvals
Zone-rated equipment in the US carries the AEx marking, for example Class I, Zone 0, AEx ia IIC T6, so a datasheet showing only ATEX or IECEx marks does not show US approval.
The term · industrial
What “industrial” means for a smartphone
“Industrial” describes a phone built for plant conditions: sealed, drop-resistant and manageable at fleet scale through Android Enterprise. It does not by itself mean the phone may enter a classified area. Only a device with a valid explosion-protection certificate and marking may do that.
The IS-04Z1 is designed to be both an industrial Android phone (IP68, 4,000 mAh battery, 50 MP camera, Android 16 with EMM and MDM support) and an intrinsically safe one. Its explosion-protection certificates are in progress and have not been issued.
In United States. US fleets combine operator staff with contractor turnover on turnarounds, so EMM and MDM enrolment and retirement must be fast. Android 16 with EMM and MDM support allows IT to apply policy to the handset like the rest of the fleet. Charging takes place in a safe area, away from the truck.
The route · specification
Specifying an industrial cell phone for United States
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 · United States
Frequently asked questions
Can we buy an industrial cell phone in United States 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 industrial cell phone in United States 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.
Is the IS-04Z1 an industrial phone as well as an Ex phone?
Yes by design: IP68 sealing, a 4,000 mAh battery, a 50 MP camera and Android 16 with EMM and MDM support. The explosion-protection certificates are separate and still in progress.
Which sites in United States does this cover?
The market guide for United States covers Permian Basin, Houston Ship Channel, Beaumont and Port Arthur, Lake Charles and Calcasieu, among others. Site-level pages are linked below.
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 conditions affect devices in the Permian Basin?
The basin is dry and sparsely built, so summer heat, dust and long drives between sites are typical. Check the operating temperature range, dust ingress rating and battery life, and confirm any operator-specific site rules, including permits and gas detection practice, with the company controlling the lease.
What FCC approval does a smartphone need in the United States?
Radio-containing devices such as phones normally need FCC equipment authorisation, either by certification through an approved body or a supplier's declaration depending on the device type. Check the FCC rules and consult an accredited test lab or telecommunication certification body for your product's category.
Does the handset cover Class II dust areas in the US?
The Zone 21 design target covers dust at sulfur handling, coal transfer and solids charging, but certification is in progress and no listing exists. Check which Class and Division the final listing covers against your facility's own classification before use.
Related guides
Keep exploring
Related guides for United States and for United States.
NEC 500 Class I Division 1 Mobile Phone Distributor in United StatesSame place, different guide
Rugged Mobile Phone in United StatesSame place, different guide
Hazardous Area Mobile Phone Distributor in United StatesSame place, different guide
IECEx Mobile Phone Supplier in United StatesSame place, different guide
Explosion-Proof Mobile Phone Supplier in United StatesSame place, different guide
Ex-Proof Mobile Phone Supplier in United StatesSame place, different guide
United States market guideCertification route and regulators
All guides for United StatesEvery route we cover
Certification statusWhat is in progress
Enquiry · United States
Ask about the IS-04Z1 for United States
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Enquiry · United States
Launching Q4 2026
Planning for United States?
Send the zone and gas group of your site and we will reply with the datasheet and schedule.