Fuel and gas
Subsidiaries provide fuel storage tank leasing and terminal services (Senoko Services) and gas shipping and retail (Senoko Gas Supply).
Senoko Industrial Zone · Ex-proof
Ex-Proof Smartphone in Senoko Industrial Zone
Natural gas has replaced crude oil as the main fuel since 1992, with fuel oil kept as a back-up, and stage III boilers were modified with gas burners to burn either fuel. Classified areas centre on the power station's gas systems and on fuel storage tank leasing and terminal services, not on the whole estate. If you are specifying an Ex-proof smartphone for Senoko, 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
WhereSenoko Industrial Zone
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Senoko: 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. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
At a glance · Ex-proof
Checklist: Ex-proof smartphone for Senoko
| 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 | Senoko: Power plant gas and fuel systems, Fuel storage tanks and terminal services | Classified by the site operator |
Product · Senoko Industrial Zone
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 Senoko Industrial Zone. 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 · Senoko
Working in Senoko: operators and classified areas
The companies on site and the hazardous-area types a handset is likely to meet there.
Operators and companies on site
- Senoko Energy
- Senoko Services (fuel storage tank leasing and terminals)
- Senoko Gas Supply
Classified areas to expect
- Power plant gas and fuel systems
- Fuel storage tanks and terminal services
Local conditions · Senoko
Conditions in Senoko that affect handheld equipment
Power station
Senoko Power Station is a combined cycle plant with a licensed capacity of 2,644 MW and supplies about 20 per cent of Singapore's electricity needs, according to its operator.
Field notes · Senoko
More about Senoko that matters for portable equipment
Senoko: background
The station stands on the site of a former British naval base in Sembawang on Singapore's northern coast, so the shoreline is a mixture of old naval and new industrial land.
Senoko: industry on the ground
Senoko is best known for two uses, its power station and a fishery port, so large power plant and wholesale seafood handling share the same stretch of Sembawang's northern coastline.
Senoko: climate and equipment wear
Equatorial heat and humidity, with frequent heavy showers, are constant on this northern coast and affect outdoor switchyards, fuel tanks and gas metering stations.
Senoko: industry on the ground
Senoko Power Station is the largest power station in Singapore and was commissioned in 1976, after planning began in the early 1970s under the Public Utilities Board.
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 Senoko. A marking check at the power station would focus on the gas fuel systems and fuel tanks, where natural gas is typically IIA and diesel vapour is a flammable liquid hazard. The IS-04Z1 target marking is II 2 G Ex ib IIC T4, not yet issued. The operator's classification drawings say which gas group and temperature class apply.
The route · specification
Specifying an Ex-proof smartphone for Senoko Industrial Zone
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 · Senoko Industrial Zone
Frequently asked questions
Can we buy an Ex-proof smartphone in Senoko Industrial Zone 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 Senoko Industrial Zone 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.
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 Senoko would use it?
Likely candidates are power plant gas and fuel systems, fuel storage tanks and terminal services. 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.
When are outages most likely to need extra field devices?
Combined-cycle units are taken offline for planned inspections, and contractor numbers rise during those windows. Dates are set by the operator and the grid, so ask the plant's maintenance planner about the outage calendar and the approved-equipment list.
Does the fuel mix change the equipment requirement?
Natural gas has been the main fuel since 1992, with fuel oil as a back-up. Gas groups and temperature classes differ between natural gas and oil vapour, so devices should be matched to the gas group and temperature class stated in the plant's area classification.
Is the whole Senoko estate a hazardous area?
No. The classified areas are mostly the gas and fuel systems and fuel tanks at the power station, not the estate as a whole. Other tenants have not been checked here. Ask the relevant operator for its classification before assuming a zone, and confirm with the site operator.
Related guides
Keep exploring
Related guides for Senoko Industrial Zone and for Singapore.
Industrial Mobile Phone Distributor in Senoko Industrial ZoneSame place, different guide
Intrinsically Safe Mobile Phone in Senoko Industrial ZoneSame place, different guide
IECEx Mobile Phone Distributor in Senoko Industrial ZoneSame place, different guide
Rugged Mobile Phone in Senoko Industrial ZoneSame place, different guide
ATEX and IECEx Mobile Phone Distributor in Senoko Industrial ZoneSame place, different guide
Hazardous Area Mobile Phone Distributor in Senoko Industrial ZoneSame place, different guide
ATEX and IECEx Mobile Phone Distributor in Singapore ShipyardElsewhere in Singapore
ATEX and IECEx Mobile Phone Distributor in Singapore Offshore OperationsElsewhere in Singapore
ATEX and IECEx Mobile Phone Distributor in Tuas Industrial ZoneElsewhere in Singapore
ATEX and IECEx Mobile Phone Distributor in Loyang OffshoreElsewhere in Singapore
Singapore market guideCertification route and regulators
All guides for SingaporeEvery route we cover
Certification statusWhat is in progress
Enquiry · Senoko
Ask about the IS-04Z1 for Senoko, Singapore
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Enquiry · Senoko
Launching Q4 2026
Planning for Senoko Industrial Zone?
Name the site and the operator and we will send what is available before launch.