Scale
The channel is roughly 50 miles long and is described as the second-largest petrochemical complex in the world. Port Houston operates eight public facilities along it.
Houston · ATEX and IECEx
ATEX and IECEx Mobile Phone in Houston
The Houston Ship Channel links the Port of Houston to the Gulf of Mexico and is lined with refineries, chemical plants and terminals, forming one of the largest petrochemical complexes in the world. Zone 1 and Zone 21 areas arise at process units, tank farms and loading docks along the channel. If you are specifying an ATEX and IECEx mobile phone for Houston and the Houston Ship Channel, 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 topicATEX and IECEx
DeviceMobile Phone
RouteSpecification
WhereHouston
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Houston and the Houston Ship Channel: 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. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
At a glance · ATEX and IECEx
Checklist: ATEX and IECEx mobile phone for Houston and the Houston Ship Channel
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Marking | II 2 G Ex ib IIC T4 on the rating plate | Design target; not yet marked |
| EU-type examination certificate | Notified body number and certificate ID | In progress with TÜV; not issued |
| IECEx certificate of conformity | Number listed on the IECEx online register | In progress; not issued |
| Where it applies | Houston and the Houston Ship Channel: Refinery process units, Petrochemical plants, Tank farms | Classified by the site operator |
Product · Houston
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 Houston. 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 · Houston and the Houston Ship Channel
Houston and the Houston Ship Channel at a glance: who is there, what is classified
A short profile of the site and the kinds of classified area that matter for portable equipment.
Operators and companies on site
- ExxonMobil (Baytown refinery)
- Pemex (Deer Park refinery)
Classified areas to expect
- Refinery process units
- Petrochemical plants
- Tank farms
- Dock and terminal loading areas
Local conditions · Houston and the Houston Ship Channel
Site conditions at Houston and the Houston Ship Channel: what wears and what limits equipment
Named sites
ExxonMobil's Baytown refinery (588,000 barrels a day, about 3,400 acres) sits beside the channel. The Deer Park refinery (about 275,000 barrels a day crude capacity) has been wholly owned by Pemex since Shell completed its exit in January 2022.
Field notes · Houston and the Houston Ship Channel
More about Houston and the Houston Ship Channel that matters for portable equipment
Houston and the Houston Ship Channel: people and language
Greater Houston had about 7.8 million residents at the 2020 census and is recognised worldwide for oil and gas, giving contractors and engineers a very deep local labour pool.
Houston and the Houston Ship Channel: infrastructure
The Houston Ship Channel is 530 feet wide, 45 feet deep and 50 miles long, and has been deepened repeatedly to take larger ships.
Houston and the Houston Ship Channel: industry on the ground
The channel and surrounding area support the second-largest petrochemical complex in the world, built because of the nearby Texas oilfields.
Houston and the Houston Ship Channel: who works there
Public terminals include Turning Basin, Barbours Cut and Bayport, and private docks include the ExxonMobil Baytown and Deer Park complexes, so one waterway involves many separate operators.
The term · ATEX and IECEx
What “ATEX and IECEx” means for a smartphone
ATEX is the European legal framework for equipment used in explosive atmospheres (Directive 2014/34/EU). IECEx is the international certification scheme built on the IEC 60079 standards. Buyers outside Europe often ask for both: an IECEx certificate is the technical evidence most national regimes build on, while ATEX is the legal route into the European market.
For the IS-04Z1 both routes are in progress with TÜV in Germany and neither certificate has been issued. The marking target is II 2 G Ex ib IIC T4: equipment Group II (surface industry), Category 2 (Zone 1 gas), protection concept ib (intrinsic safety), gas group IIC and temperature class T4.
In Houston and the Houston Ship Channel. Along the Houston Ship Channel, refineries, chemical plants and terminals each run their own contractor approvals, so a reviewer will want certificate evidence in a form they can file. A dual ATEX and IECEx route is designed to help international contractors and EPCs bring one documented basis to several operators. The IS-04Z1 certification is in progress; no certificate has been issued.
The route · specification
Specifying an ATEX and IECEx mobile phone for Houston
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 · Houston
Frequently asked questions
Can we buy an ATEX and IECEx mobile phone in Houston 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 ATEX and IECEx mobile phone in Houston 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 ATEX and IECEx certified?
Not yet. Both routes are in progress with TÜV in Germany and no certificate has been issued. Any listing that says otherwise is wrong.
Which areas at Houston and the Houston Ship Channel would use it?
Likely candidates are refinery process units, petrochemical plants, tank farms, dock and terminal loading areas. 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.
Why is flooding a planning point for Houston plant visits?
Flat terrain and heavy rain can cause local flooding on roads and low-lying areas. Operators usually have severe-weather plans, so allow extra travel time, keep equipment in waterproof cases when transporting, and ask the site about access arrangements.
What is the best way to source equipment for Houston-based teams?
Houston has many engineering and procurement firms and a major port and airports, so shipping is straightforward. Agree lead times and local support with the supplier, and confirm which area classification and approval marks your client's plant requires.
How does Gulf Coast weather affect handheld use here?
Houston has long hot summers, humidity, and exposure to hurricanes and flooding, which shapes outdoor work and turnaround planning. IP68 protects against dust and water ingress, but a battery in heat still needs sensible handling, and charging belongs in safe areas. Ask the operator about local rules on storm preparation and equipment storage.
Related guides
Keep exploring
Other guides for Houston, other places in United States, and the pages behind them.
IECEx Mobile Phone Distributor in HoustonSame place, different guide
Ex-Proof Mobile Phone in HoustonSame place, different guide
Intrinsically Safe Mobile Phone Distributor in HoustonSame place, different guide
Hazardous Area Mobile Phone Distributor in HoustonSame place, different guide
Explosion-Proof Mobile Phone Distributor in HoustonSame place, different guide
Rugged Mobile Phone Distributor in HoustonSame place, different guide
ATEX and IECEx Mobile Phone Distributor in US Shale Oil OperationsElsewhere in United States
ATEX and IECEx Mobile Phone Distributor in Beaumont TexasElsewhere in United States
ATEX and IECEx Mobile Phone Distributor in North Dakota BakkenElsewhere in United States
ATEX and IECEx Mobile Phone Distributor in Midland OdessaElsewhere in United States
United States market guideCertification route and regulators
All guides for United StatesEvery route we cover
Certification statusWhat is in progress
Enquiry · Houston and the Houston Ship Channel
Ask about the IS-04Z1 for Houston and the Houston Ship Channel, United States
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
Enquiry · Houston and the Houston Ship Channel
Launching Q4 2026
Planning for Houston?
Send the zone and gas group of your site and we will reply with the datasheet and schedule.