Denmark: rules and approvals
Manufacturers who apply the ATEX provisions and affix CE and Ex markings may sell equipment anywhere in the EU without further requirements for those risks, so Danish buyers can use EU-wide certificates.
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 Ex-proof mobile phone 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.
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 |
|---|---|---|
| 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 | 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.
Operators and classified areas drawn from the SAMS Denmark market guide.
Manufacturers who apply the ATEX provisions and affix CE and Ex markings may sell equipment anywhere in the EU without further requirements for those risks, so Danish buyers can use EU-wide certificates.
Denmark expects to remain self-sufficient in oil until 2050 according to the cited article, so existing offshore and onshore oil facilities are likely to need maintenance work for years to come.
Coal supplied less than 11% of electricity in 2019 and coal-fired generation was scheduled to end by 2028, so biomass and gas plants are replacing coal sites.
A target of 100% renewable electricity by 2030 and a wind turbine industry dating from the 1970s mean wind and green-energy projects are a large share of current construction work.
“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 Denmark. A marking check in Denmark would read the dust marking and maximum surface temperature as well as the gas marking, since enzyme powder, feed, grain and cement dust sit in Zone 21 and Zone 22 areas that look like ordinary buildings. The gas target is II 2 G Ex ib IIC T4, with Zone 21 under the same programme.
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 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.
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.
Denmark applies ATEX Directive 2014/34/EU as an EU member, and the directive explicitly covers equipment used on fixed offshore platforms. Operators typically add their own approval, helicopter and survival-suit procedures. Confirm the platform operator's device rules well ahead of a trip.
Yes, though the sector is mature. Oil and gas production began scaling in the 1980s and continues, with maintenance and decommissioning work. Other hazardous-area work comes from biogas, power and industrial plants. Confirm current projects with operators rather than relying on past production figures.
It is designed for Zone 1 gas and Zone 21 dust, with four-constellation GNSS and 4G LTE for lone working, but certification is in progress and no certificate exists. Suitability depends on the area classification and gas group at each plant. Check with the plant operator and request the datasheet.
More on Denmark, and on other places in Denmark.
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
Name the site and the operator and we will send what is available before launch.