Denmark: logistics and access
Port Esbjerg calls itself the world's largest base port for offshore wind activities and says it has been involved in shipping components to more than 65 offshore wind projects.
The IS-04Z1 is an explosion proof mobile phone designed for Zone 1 and Zone 21, from a wet deck 225 km west of Esbjerg to a fermentation building at Kalundborg and a biogas upgrading skid on Lolland. This page explains what to look for in an intrinsically safe smartphone for Denmark, 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 Denmark: 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. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Level of protection | ia, ib or ic matched to the zone | ib, for Zone 1 |
| Entity parameters | Uo, Io and Po within the device limits | Published with the certificate |
| Accessories | Chargers and cases certified with the device | Defined at certification |
| Where it applies | Denmark: Esbjerg, The Danish North Sea, Fredericia | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Denmark. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
The main operators, industrial areas and sites that the SAMS Denmark market guide covers.
Port Esbjerg calls itself the world's largest base port for offshore wind activities and says it has been involved in shipping components to more than 65 offshore wind projects.
Denmark imports about 12% of its energy but is also an exporter, and its electricity grid is connected by transmission lines to other European countries.
Denmark has North Sea oil and gas but ranked only 57th among net crude exporters in 2023 after ranking 32nd in 2008, so offshore work is mature, with decommissioning and maintenance a larger share.
North Sea natural gas projects began in 1984 and North Sea production made Denmark self-sufficient in energy in 1997, which explains the established offshore supply chain on the west coast.
Intrinsic safety limits the electrical and thermal energy in a circuit so that neither a spark nor a hot surface can ignite a gas or dust atmosphere, even when a fault occurs. The ib level, used for Zone 1, tolerates one fault. It is the usual way to make a handheld device that a worker carries continuously through a hazardous area.
The IS-04Z1 is designed on this principle for Zone 1 and Zone 21 (marking target II 2 G Ex ib IIC T4). Intrinsic safety is a design basis, not a certificate: certification is in progress and none has been issued yet.
In Denmark. Biogas plants and remote terminals are often worked by one technician with the nearest colleague a drive away, and offshore rounds start from Esbjerg. An intrinsically safe handheld is designed for these rounds, with four-constellation GNSS and 4G LTE holding a position and a link, and a 4,000 mAh battery for the shift.
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.
There is no list price yet. SAMS gives indicative pre-launch pricing in writing, against a stated quantity and site, and does not commit to a lead time before certification completes.
The circuits are designed to limit energy so a spark or hot surface cannot ignite a gas or dust atmosphere, even with one fault (level ib, Zone 1). Certification of that design is in progress.
The market guide for Denmark covers Esbjerg, The Danish North Sea, Fredericia, Kalundborg, among others. Site-level pages are linked below.
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.
Cold, wet and windy conditions affect battery life and touchscreen use with gloves, particularly offshore and at wind farms. Check the lowest rated ambient temperature on the certificate, the water ingress rating and whether touch input works with wet or gloved hands.
Typically the EU declaration of conformity, the certificate, the Ex marking details and instructions in the local language, which may be Danish or English depending on the operator. Request the site's equipment register template so supplier documents can be matched to it.
The classification of areas into zones comes from the emergency management agency under an executive order, while the employer's duty to assess explosion risk and hold an explosion protection document comes from the Danish Working Environment Authority. SAMS classifies nothing. Confirm the arrangement with the site operator for your plant.
Related guides for Denmark and for Denmark.
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Name the site and the operator and we will send what is available before launch.