Equatorial climate
Average humidity is about 81 per cent and rainfall about 2,362 mm a year.
Manaus is a large Amazon river city whose Free Economic Zone, established in 1967, hosts electronics and other manufacturing. Decree-Law 288 of 28 February 1967 redefined the zone with an area of 10,000 km2, including industrial and agricultural centres, as a vehicle for regional development in the Amazon. This page explains what to look for in an explosion proof mobile phone for Manaus Free Trade Zone, 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 Manaus Free Trade Zone: 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.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Protection concept | Flameproof (Ex d) or intrinsic safety (Ex i) | Intrinsic safety, level ib |
| Zone suitability | Zone 1 gas and Zone 21 dust | Design target for Zone 1 and 21 |
| Certificate | Number, issuing body and schedule of conditions | In progress; not issued |
| Where it applies | Manaus Free Trade Zone: Fuel storage and loading, Refinery and fuel logistics, Port petroleum and chemical handling | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Manaus Industrial Zone. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
A short profile of the site and the kinds of classified area that matter for portable equipment.
Average humidity is about 81 per cent and rainfall about 2,362 mm a year.
Most Free Zone factories are light manufacturing; classified areas are concentrated around fuel storage and handling.
The Manaus Free Trade Zone was formalised by Law 3.173 on 6 June 1957 and for its first ten years operated from a rented warehouse in the Port of Manaus.
Federal tax exemptions administered by SUFRAMA and SUDAM created the comparative advantage that attracted manufacturers to the zone, so supplier and import procedures follow its own administrative regime.
The Manaus refinery, long known as Reman and the Isaac Sabba refinery on the Rio Negro, was one of two Petrobras refineries sold (it is now Ream), so the site operator is no longer Petrobras.
Manaus has a tropical monsoon climate with an average temperature of 27.4 degrees Celsius, high air humidity and about 2,300 mm of rain a year, so enclosures and seals face constant moisture.
“Explosion proof” is the phrase most buyers use for equipment that may be taken into a classified hazardous area. Strictly, it covers several protection concepts: a flameproof enclosure (Ex d) contains an internal explosion, while intrinsic safety (Ex i) limits electrical energy so that an ignition cannot start. Phones are normally intrinsically safe, because a flameproof handset would be too heavy to carry all shift.
The IS-04Z1 uses intrinsic safety, with a marking target of Ex ib IIC T4, and is designed for Zone 1 and Zone 21. It is pre-launch, certification is in progress and no certificate has been issued.
In Manaus Free Trade Zone. In Manaus, explosion-proof applies only where fuel storage and loading, refinery and fuel logistics, or port petroleum and chemical handling exist. Fixed equipment may be flameproof Ex d, while a portable handset relies on intrinsic safety. The IS-04Z1 is designed for the latter, pending certification.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Not today. Until the certificates are issued the IS-04Z1 stays out of classified areas, and until launch there is nothing to purchase. You can ask for the datasheet and the certification schedule, or book a safe-area evaluation unit.
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.
It is intrinsically safe (marking target Ex ib IIC T4), which is the usual way to make a phone for hazardous areas. It is not a flameproof (Ex d) design, and certification is still in progress.
Likely candidates are fuel storage and loading, refinery and fuel logistics, port petroleum and chemical handling. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
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.
Mostly fuel handling: the refinery, tank and terminal areas and product loading, plus solvent, paint and battery processes in some factories. Zones are set by each site's classification study, so ask the plant safety team which areas need certified mobile devices.
Only where flammable gases, vapours or dusts can occur, such as fuel storage, solvent and coating areas. Many electronics assembly halls are non-hazardous, so check the plant's area classification before buying certified devices for every user.
Manaus is served by the Negro and Amazon rivers and an international airport, with limited road links, so deliveries from the south-east take longer. Plan lead times and spares accordingly, and confirm delivery routes with the supplier or distributor concerned once certification is complete.
Related guides for Manaus Industrial Zone and for Brazil.
Share the site details and quantity. You will get the datasheet and the certification schedule back by email; pricing is indicative only until launch.
Name the site and the operator and we will send what is available before launch.